PUMA publications for /user/b_schwederski/methylhttps://puma.ub.uni-stuttgart.de/user/b_schwederski/methylPUMA RSS feed for /user/b_schwederski/methyl2024-03-28T12:17:08+01:00A DFT based assessment of coordination modes of the bis(1-methyl-2-imidazolyl)glyoxal ligand in mononuclear and dinuclear complexeshttps://puma.ub.uni-stuttgart.de/bibtex/28e2d23447faea484a543a9344446d20b/b_schwederskib_schwederski2019-07-15T13:41:23+02:00DFT complex dinuclear glyoxal imidazolyl ligand methyl mononuclear <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Orkan Sarper" itemprop="url" href="/person/12d1d37ee6162ffb706eb99eac1d725cd/author/0"><span itemprop="name">O. Sarper</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Ece Bulak" itemprop="url" href="/person/12d1d37ee6162ffb706eb99eac1d725cd/author/1"><span itemprop="name">E. Bulak</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Kaim" itemprop="url" href="/person/12d1d37ee6162ffb706eb99eac1d725cd/author/2"><span itemprop="name">W. Kaim</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Tereza. Varnali" itemprop="url" href="/person/12d1d37ee6162ffb706eb99eac1d725cd/author/3"><span itemprop="name">T. Varnali</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of Molecular Structure: THEOCHEM</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">773 </span></span>(<span itemprop="issueNumber">1-3</span>):
<span itemprop="pagination">35--42</span></em> </span>(<em><span>2006<meta content="2006" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of Molecular Structure: THEOCHEM1-335--42A DFT based assessment of coordination modes of the bis(1-methyl-2-imidazolyl)glyoxal ligand in mononuclear and dinuclear complexes7732006DFT complex dinuclear glyoxal imidazolyl ligand methyl mononuclear The ligand bis(1-methyl-2-imidazolyl)glyoxal (big) was studied by DFT with respect to energy min. conformations in the neutral, cation and anion radical states. Coordination alternatives involving chelate rings of different size were calcd. for the partly exptl. accessible mononuclear complexes of big with [AuCl2]+, [Rh(C5R5)Cl]+ and Re(CO)3Cl. Comparative DFT calcns. of various coordination modes for mononuclear, homodinuclear and heterodinuclear complexes of the potentially tetradentate big ligand reveal a preference for seven-membered chelate rings in the mononuclear species and for edge-sharing six-membered chelate rings with anti configuration of the metal-chloride bonds for the dinuclear systems, supporting the exptl. evidence obtained through spectroscopic and electrochem. studies of {(μ-big)[Re(CO)3Cl]2}. [on SciFinder(R)]Tungsten(0) complexes of p-acids N-methylpyrazinium cations and of N-methylpyrazinium radicals. Crystal and molecular structure of (C4H4N2-Me)W(CO)3(PCy3)2(PF6), Cy = cyclohexylhttps://puma.ub.uni-stuttgart.de/bibtex/22ffe62e0c61210ba01f79b794a93bfae/b_schwederskib_schwederski2019-07-15T13:41:23+02:00carbonyl crystal methyl methylpyrazinium phosphine phosphine;ESR phosphine;electrochem radical;pyrazinium redn structure tungsten <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Bruns" itemprop="url" href="/person/1031d8563fae95f6015ad14edd3d9cbe3/author/0"><span itemprop="name">W. Bruns</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Hans-Dieter Hausen" itemprop="url" href="/person/1031d8563fae95f6015ad14edd3d9cbe3/author/1"><span itemprop="name">H. Hausen</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Kaim" itemprop="url" href="/person/1031d8563fae95f6015ad14edd3d9cbe3/author/2"><span itemprop="name">W. Kaim</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Andreas. Schulz" itemprop="url" href="/person/1031d8563fae95f6015ad14edd3d9cbe3/author/3"><span itemprop="name">A. Schulz</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of Organometallic Chemistry</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">444 </span></span>(<span itemprop="issueNumber">1-2</span>):
<span itemprop="pagination">121--130</span></em> </span>(<em><span>1993<meta content="1993" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of Organometallic Chemistry1-2121--130Tungsten(0) complexes of \textgreek{p}-acids N-methylpyrazinium cations and of N-methylpyrazinium radicals. Crystal and molecular structure of [(C4H4N2-Me)W(CO)3(PCy3)2](PF6), Cy = cyclohexyl4441993carbonyl crystal methyl methylpyrazinium phosphine phosphine;ESR phosphine;electrochem radical;pyrazinium redn structure tungsten Bonding characteristics of the H2-coordinating 16 valence electron species W(CO)3(PR3)2 (R = CHMe2, cyclohexyl (Cy)) were detd. by studying stable complexes with the poorly 2 electron-donating but strongly \textgreek{p}-accepting cationic ligand N-methylpyrazinium (mpz+). In comparison with the related complex with W(CO)5, the 1H NMR and electrochem. data suggest a strong degree of \textgreek{p} back-donation from W(CO)3(PR3)2 to the cationic acceptor in the ground state. This view is supported by the crystal structure anal. of [(mpz)W(CO)3(PCy3)2](PF6) which reveals a trans,mer configuration with a short W-N bond (210.1(10) pm). Crystal data: monoclinic, space group P21/c, a 9.079(2), b 12.859(3), c 40.981(1) {\AA}, \textgreek{b} 91.19(1)°, Z = 4, R = 0.067, Rw = 0.059. Redn. to the N-methylpyrazinium radical complexes yields highly resolved ESR spectra which show the loss of 1 phosphine ligand in the case of the tricarbonyl complexes. Even the W(CO)3(PR3) fragment induces considerable spin delocalization from the pyrazinium radical ligand to the metal. [on SciFinder(R)]Flavosemiquinone model systems. Part 2. Methyl-substituted quinoxaline radical ionshttps://puma.ub.uni-stuttgart.de/bibtex/28248b05980c7b7524c5d1d1862b58640/b_schwederskib_schwederski2019-07-15T13:41:23+02:00ESR ESR;methylquinoxaline ESR;quinoxaline flavosemiquinone ion methyl methylquinoxaline model prepn radical <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/18f12ab64041bf1c23c08869f8e9fd293/author/0"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry</span>, </em> </span>(<em><span>1984<meta content="1984" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry111767--1769Flavosemiquinone model systems. Part 2. Methyl-substituted quinoxaline radical ions1984ESR ESR;methylquinoxaline ESR;quinoxaline flavosemiquinone ion methyl methylquinoxaline model prepn radical 2,3-Dimethyl-, 6,7-dimethyl-, and 2,3,6,7-tetramethylquinoxaline were reduced in aprotic (THF) and acidic media (DMF-HClO4) to yield the corresponding quinoxaline radical anions and 1,4-dihydroquinoxaline radical cations. Anal. of their ESR spectra was accomplished by computer simulation; a consistent assignment of coupling consts. in quinoxaline radical ions could be made on the basis of the Me substitution pattern. The hyperfine splitting agreed with HMO correlations and may be used to explain the spin distribution in flavosemiquinones. [on SciFinder(R)]Dimethylplatinum(II) and tetramethylplatinum(IV) complexes of 1-methyl-(2-alkylthiomethyl)-1H-benzimidazoles: Experimental and DFT-calculated structures and NMR spectrahttps://puma.ub.uni-stuttgart.de/bibtex/2ec7efaa82274be84cf2fbf9f7c1025ea/b_schwederskib_schwederski2019-07-15T13:41:23+02:00NMR;crystal alkylthiomethyl benzimidazole chelate chelate;mol fluxionality methyl mol optimized platinum prepn prepn;DFT proton structure <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Axel Knodler" itemprop="url" href="/person/1b799683a904c272023c1d468b6a2a91c/author/0"><span itemprop="name">A. Knodler</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang Kaim" itemprop="url" href="/person/1b799683a904c272023c1d468b6a2a91c/author/1"><span itemprop="name">W. Kaim</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Vimal K. Jain" itemprop="url" href="/person/1b799683a904c272023c1d468b6a2a91c/author/2"><span itemprop="name">V. Jain</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Stanislav. Zalis" itemprop="url" href="/person/1b799683a904c272023c1d468b6a2a91c/author/3"><span itemprop="name">S. Zalis</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of Organometallic Chemistry</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">655 </span></span>(<span itemprop="issueNumber">1-2</span>):
<span itemprop="pagination">218--226</span></em> </span>(<em><span>2002<meta content="2002" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of Organometallic Chemistry1-2218--226Dimethylplatinum(II) and tetramethylplatinum(IV) complexes of 1-methyl-(2-alkylthiomethyl)-1H-benzimidazoles: Experimental and DFT-calculated structures and NMR spectra6552002NMR;crystal alkylthiomethyl benzimidazole chelate chelate;mol fluxionality methyl mol optimized platinum prepn prepn;DFT proton structure (L)PtMen where [n = 2, 4; L = mmb = [1-methyl-(2-methylthiomethyl)-1H-benzimidazole], mtb = [1-methyl-(2-tert-butylthiomethyl)-1H-benzimidazole]] were characterized by x-ray crystallog. [except for (mmb)PtMe2] and by 1H and 195Pt NMR spectroscopy. The tetramethylplatinum(IV) complexes exhibit a variable degree of dynamic 1H NMR behavior due to the mobility at the thioether S atom in the nonplanar five-membered chelate ring, as supported by structural anal. D.-functional theory (DFT) calcns. were used to reproduce the structural features and the 1H NMR chem. shifts. In comparison with other late transition metal complexes of these N-S chelate ligands the Me4Pt and esp. the Me2Pt compds. exhibit a relatively stronger preference of the metal for the S donor. [on SciFinder(R)]Organometallic platinum(ii) complexes of methyl-substituted phenanthrolineshttps://puma.ub.uni-stuttgart.de/bibtex/2033e59be7333482d53587e14b5b96267/b_schwederskib_schwederski2019-07-15T13:41:23+02:00absorption complex complex;electrochem complex;mesityl crystal mesityl methyl methylphenanthroline mol phenyl platinum prepn redox spectra structure <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Axel Klein" itemprop="url" href="/person/1891caecc932fe20ca285cb4e60c3ede6/author/0"><span itemprop="name">A. Klein</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Eric J. L. McInnes" itemprop="url" href="/person/1891caecc932fe20ca285cb4e60c3ede6/author/1"><span itemprop="name">E. McInnes</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/1891caecc932fe20ca285cb4e60c3ede6/author/2"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of the Chemical Society, Dalton Transactions</span>, </em> </span>(<em><span>2002<meta content="2002" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of the Chemical Society, Dalton Transactions112371--2378Organometallic platinum(ii) complexes of methyl-substituted phenanthrolines2002absorption complex complex;electrochem complex;mesityl crystal mesityl methyl methylphenanthroline mol phenyl platinum prepn redox spectra structure A series of dimesitylplatinum(ii) complexes of sym. substituted dimethyl-1,10-phenanthrolines (dmphen) was prepd. and examd. in view of their electronic structure. Electrochem. data of the parent complexes and spectroscopic data of parent and one-electron reduced species reveal the variable electronic influence of the Me substituents in different positions of the heteroarom. system. From multi-frequency S, X, K and Q-band EPR measurements of the corresponding radical anions and of analogous species with 1,10-phenanthroline, 3,4,7,8-tetramethyl-1,10-phenanthroline and 2,2'-bipyridine ligands hyperfine coupling consts. and g values were obtained and used for an estn. of the contributions from platinum orbitals to the singly occupied MO. X-Ray crystal structures are reported for [(2,9-dmphen)PtMes2] and [(2,9-dmphen)PtPh2], allowing us to probe the steric interactions between the Me substituents of the phenanthroline and the mesityl ligands. [on SciFinder(R)]A tale of two complexes, PtMen(RN=CHCH=NR) (n = 2 and n = 4, R = cyclohexyl): Why do PtII and PtIV complexes exhibit virtually identical redox behavior and colors?https://puma.ub.uni-stuttgart.de/bibtex/2ce94821ca575e75325abdaf074d400d3/b_schwederskib_schwederski2019-07-15T13:41:23+02:00charge complex complex;EPR complex;MO complex;crystal complex;electrochem complex;mol complex;platinum diazabutadiene methyl platinum prepn property structure transfer <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Steffen Hasenzahl" itemprop="url" href="/person/19b9041b7f8e5e7875d680d7469561b6d/author/0"><span itemprop="name">S. Hasenzahl</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Hans-Dieter Hausen" itemprop="url" href="/person/19b9041b7f8e5e7875d680d7469561b6d/author/1"><span itemprop="name">H. Hausen</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/19b9041b7f8e5e7875d680d7469561b6d/author/2"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Chemistry - A European Journal</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">1 </span></span>(<span itemprop="issueNumber">1</span>):
<span itemprop="pagination">95--99</span></em> </span>(<em><span>1995<meta content="1995" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Chemistry - A European Journal195--99A tale of two complexes, [PtMen(RN=CHCH=NR)] (n = 2 and n = 4, R = cyclohexyl): Why do PtII and PtIV complexes exhibit virtually identical redox behavior and colors?11995charge complex complex;EPR complex;MO complex;crystal complex;electrochem complex;mol complex;platinum diazabutadiene methyl platinum prepn property structure transfer In spite of their similar cyclic voltammograms, absorption spectra, and solvatochromic behavior, the two 1,4-diazabutadiene title complexes exhibit markedly different photoreactivities and underlying electronic structures, as evident from absorption and EPR spectra of the persistent anion radical forms. The lowest excited state of the nonphotoreactive PtII system [(CyN=CHCH=NCy)PtMe2] has MLCT (metal-to-ligand charge-transfer, 5d $\rightarrow$ \textgreek{p}*) character, and the EPR spectrum of the corresponding anion radical at 〈g〉 = 2.016 exhibits sizable metal/ligand orbital mixing. However, the structurally characterized PtIV complex [(CyN=CHCH=NCy)PtMe4] (C2/c; a 2021.6(2), b 805.3(1), c 1254.2(1) pm; \textgreek{b} 111.05(1)°; V = 1905.7(4) $\times$ 106 pm3; Z = 4) has a low-lying photoreactive LLCT (ligand-to-ligand and charge-transfer, \textgreek{s}Pt-C $\rightarrow$ \textgreek{p}*) excited state in which the axial Pt-C bonds are activated, as already suggested by the longer Pt-C(ax) bonds (214.0(8) pm) relative to Pt-C(eq) in the ground state (204.5(5) pm). The anion radical of the PtIV complex has lost the long-wavelength absorption band in the visible; it shows a well-resolved EPR spectrum at 〈g〉 = 1.9945 with \textgreek{p}-ligand and 195Pt hyperfine structure and a small g anisotropy. A qual. MO scheme is presented to account for the similar frontier-orbital energy differences despite dissimilar underlying electronic structures. [on SciFinder(R)]EPR study of electron transfer and group transfer in organoplatinum(II) and (IV) compoundshttps://puma.ub.uni-stuttgart.de/bibtex/20f40a77fe96947fad5e59587f36f3740/b_schwederskib_schwederski2019-07-15T13:41:23+02:004 anion;ESR chelate chelate;electron chelate;homolysis diazabutadiene diazabutadiene;methyl diazabutadiene;platinum electrochem group mesityl methyl organoplatinum photochem platinum radical radical;photohomolysis redn transfer <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Axel Klein" itemprop="url" href="/person/156b06388224c0dc3784900a4204d16c5/author/0"><span itemprop="name">A. Klein</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Steffen Hasenzahl" itemprop="url" href="/person/156b06388224c0dc3784900a4204d16c5/author/1"><span itemprop="name">S. Hasenzahl</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/156b06388224c0dc3784900a4204d16c5/author/2"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry</span>, </em> </span>(<em><span>1997<meta content="1997" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Journal of the Chemical Society, Perkin Transactions 2: Physical Organic Chemistry122573--2577EPR study of electron transfer and group transfer in organoplatinum(II) and (IV) compounds19974 anion;ESR chelate chelate;electron chelate;homolysis diazabutadiene diazabutadiene;methyl diazabutadiene;platinum electrochem group mesityl methyl organoplatinum photochem platinum radical radical;photohomolysis redn transfer Chelate complexes between the 1,4-diazabuta-1,3-diene ligands RN:CHCH:NR = R-DAB (R = alkyl, aryl) and the organoplatinum fragments PtMe2, PtMe4 and PtMes2 (Mes = mesityl) can be reversibly reduced to paramagnetic compds., formulated as Pt(II) or (IV) species bound by radical anion ligands (R-DAB.bul.-). EPR studies in fluid and frozen soln. support this assignment; however, the metal contribution to the singly occupied MO is higher for the paramagnetic PtII species than for the PtIV systems. Comparison with related radical complexes of the main group and transition element series reveals that even the organoplatinum(IV) compds. exhibit a relatively high degree of ligand-to-metal spin transfer as evident from small 1H(CH) and large 14N and 195Pt EPR hyperfine coupling consts. The tetramethylplatinum(IV) complexes are photoreactive; a Pt-contg. primary dissocn. product from Pt-C \textgreek{s} bond homolysis was detected by EPR spectroscopy using tBu-NO as a spin trap reagent during irradn. Group transfer reactivity also was noted for radical anions where the conversion [(R-DAB)PtMe2].bul.- $\rightarrow$ [(R-DAB)PtMe4].bul.- could be monitored by EPR spectroscopy. [on SciFinder(R)]Tripropylarsane complexes of palladium(II) and platinum(II) - syntheses, spectroscopy, and structureshttps://puma.ub.uni-stuttgart.de/bibtex/2e79dea4cc2fe3eaf6db38d5809f0c7d7/b_schwederskib_schwederski2019-07-15T13:41:23+02:00arsine complex methyl palladium platinum prepn;crystal structure <span data-person-type="author" class="authorEditorList "><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Prasad P. Phadnis" itemprop="url" href="/person/1876edbdf4e7ced67fecc77eef6a82bd7/author/0"><span itemprop="name">P. Phadnis</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Vimal K. Jain" itemprop="url" href="/person/1876edbdf4e7ced67fecc77eef6a82bd7/author/1"><span itemprop="name">V. Jain</span></a></span>, </span><span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Axel Knodler" itemprop="url" href="/person/1876edbdf4e7ced67fecc77eef6a82bd7/author/2"><span itemprop="name">A. Knodler</span></a></span>, </span> and <span><span itemtype="http://schema.org/Person" itemscope="itemscope" itemprop="author"><a title="Wolfgang. Kaim" itemprop="url" href="/person/1876edbdf4e7ced67fecc77eef6a82bd7/author/3"><span itemprop="name">W. Kaim</span></a></span></span>. </span><span class="additional-entrytype-information"><span itemtype="http://schema.org/PublicationIssue" itemscope="itemscope" itemprop="isPartOf"><em><span itemprop="journal">Zeitschrift fuer Anorganische und Allgemeine Chemie</span>, </em> <em><span itemtype="http://schema.org/PublicationVolume" itemscope="itemscope" itemprop="isPartOf"><span itemprop="volumeNumber">628 </span></span>(<span itemprop="issueNumber">6</span>):
<span itemprop="pagination">1332--1338</span></em> </span>(<em><span>2002<meta content="2002" itemprop="datePublished"/></span></em>)</span>Mon Jul 15 13:41:23 CEST 2019Zeitschrift fuer Anorganische und Allgemeine Chemie61332--1338Tripropylarsane complexes of palladium(II) and platinum(II) - syntheses, spectroscopy, and structures6282002arsine complex methyl palladium platinum prepn;crystal structure Several Pd(II) and Pt(II) complexes of tripropylarsines (AsR3; R = Pr, iPr) [MCl2(AsR3)2], [M2Cl2(\textgreek{m}-Cl)2(AsR3)2], [Pd2Me2(\textgreek{m}-Cl)2(AsR3)2], [Pd2X2(\textgreek{m}-Pz)2(AsR3)2] (X = Cl or Me, Pz = pyrazolate), [Pd2Cl2(\textgreek{m}-Y)2(AsR3)2] (Y = OAc or SPh), [MCl(S2CNEt2)(AsR3)] and [PdCp(Cl)(AsiPr3)] (M = Pd or Pt) were prepd. All the complexes were characterized by elemental analyses, IR and 1H NMR spectroscopy. The stereochem. of the complexes was deduced from the spectroscopic data. The structures of [Pd2Me2(\textgreek{m}-X)2(AsiPr3)2] (X = Cl or Pz) were established by single crystal x-ray diffraction analyses. Both of the complexes have sym-trans configuration. Strong trans influence of the Me group is reflected on the Pd-X bond distances. [on SciFinder(R)]