Organometallic complex cations (hn-CnR'n)M(RN:CHCH:NR)Cl+ of 1,4-diazabutadienes (M = Os and n = 6 or M = Rh, Ir and n = 5, R = 2,6-dialkylphenyl). Structures and reduction to neutral compounds (hn-CnR'n)M(RNCH:CHNR)
The title compds. with d6-configured Os(II), Rh(III), or Ir(III) were isolated and characterized by UV/visible and 1H NMR. Crystal structure analyses are presented for 1,4-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene (Dipp-DAB) and for (h5-C5Me5)Ir(Dipp-DAB)ClPF6 and (h6-C6Me6)Os(Xyl-DAB)ClPF6 Xyl-DAB = 1,4-bis(2,6-dimethylphenyl)-1,4-diaza-1,3-butadiene. The electrochem. redn. of the compds. proceeds via an ECE mechanism to neutral 16 valence electron species (CnR'n)M(RNCH:CHNR), some of which could be isolated despite coordinative unsatn. due to the stabilization through axial shielding by the 2,6-dialkylphenyl substituents. on SciFinder(R)
%0 Journal Article
%1 Berger.2001b
%A Berger, Sascha
%A Baumann, Frank
%A Scheiring, Thomas
%A Kaim, Wolfgang.
%D 2001
%J Zeitschrift fuer Anorganische und Allgemeine Chemie
%K azabutadiene complex complex;diazabutadiene complex;redn complex;redox complex;rhodium crystal diazabutadiene diisopropylphenyl iridium mol osmium potential prepn redox redox;crystal redox;mol structure structure;iridium
%N 4
%P 620--630
%T Organometallic complex cations (hn-CnR'n)M(RN:CHCH:NR)Cl+ of 1,4-diazabutadienes (M = Os and n = 6 or M = Rh, Ir and n = 5, R = 2,6-dialkylphenyl). Structures and reduction to neutral compounds (hn-CnR'n)M(RNCH:CHNR)
%V 627
%X The title compds. with d6-configured Os(II), Rh(III), or Ir(III) were isolated and characterized by UV/visible and 1H NMR. Crystal structure analyses are presented for 1,4-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene (Dipp-DAB) and for (h5-C5Me5)Ir(Dipp-DAB)ClPF6 and (h6-C6Me6)Os(Xyl-DAB)ClPF6 Xyl-DAB = 1,4-bis(2,6-dimethylphenyl)-1,4-diaza-1,3-butadiene. The electrochem. redn. of the compds. proceeds via an ECE mechanism to neutral 16 valence electron species (CnR'n)M(RNCH:CHNR), some of which could be isolated despite coordinative unsatn. due to the stabilization through axial shielding by the 2,6-dialkylphenyl substituents. on SciFinder(R)
@article{Berger.2001b,
abstract = {The title compds. with d6-configured Os(II), Rh(III), or Ir(III) were isolated and characterized by UV/visible and 1H NMR. Crystal structure analyses are presented for 1,4-bis(2,6-diisopropylphenyl)-1,4-diaza-1,3-butadiene (Dipp-DAB) and for [(\textgreek{h}5-C5Me5)Ir(Dipp-DAB)Cl][PF6] and [(\textgreek{h}6-C6Me6)Os(Xyl-DAB)Cl][PF6] [Xyl-DAB = 1,4-bis(2,6-dimethylphenyl)-1,4-diaza-1,3-butadiene]. The electrochem. redn. of the compds. proceeds via an ECE mechanism to neutral 16 valence electron species [(CnR'n)M(RNCH:CHNR)], some of which could be isolated despite coordinative unsatn. due to the stabilization through axial shielding by the 2,6-dialkylphenyl substituents. [on SciFinder(R)]},
added-at = {2019-07-15T13:41:23.000+0200},
author = {Berger, Sascha and Baumann, Frank and Scheiring, Thomas and Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2bab885918387cfac9adc6df03f730827/b_schwederski},
interhash = {6e0e7b5f90d0b98cb801c9f75775c9bf},
intrahash = {bab885918387cfac9adc6df03f730827},
issn = {0044-2313},
journal = {Zeitschrift fuer Anorganische und Allgemeine Chemie},
keywords = {azabutadiene complex complex;diazabutadiene complex;redn complex;redox complex;rhodium crystal diazabutadiene diisopropylphenyl iridium mol osmium potential prepn redox redox;crystal redox;mol structure structure;iridium},
number = 4,
pages = {620--630},
timestamp = {2019-07-15T11:42:10.000+0200},
title = {Organometallic complex cations [(\textgreek{h}n-CnR'n)M(RN:CHCH:NR)Cl]+ of 1,4-diazabutadienes (M = Os and n = 6 or M = Rh, Ir and n = 5, R = 2,6-dialkylphenyl). Structures and reduction to neutral compounds [(\textgreek{h}n-CnR'n)M(RNCH:CHNR)]},
volume = 627,
year = 2001
}
