Double cyclometalation of bridging 3,6-bis(2-thienyl)-1,2,4,5-tetrazine in a dinuclear mesityl(dimethylsulfoxide)platinum(II) complex: Structure and properties
3,6-Bis(2-thienyl)-1,2,4,5-tetrazine (bttz) reacts with trans-Pt(dmso)2(mes)2, mes = mesityl = 2,4,6-trimethylphenyl, under twofold cyclometalation to yield structurally characterized (m-bttz-2H+)[Pt(dmso)(mes)]2 with uncoordinated thiophene sulfur atoms and bttz deprotonated in the 3,3' positions. The structural features include cis-positioned carbanionic ligands, twisted mesityl substituents, S-coordinated dmso ligands with the S:O bonds lying in the mol. plane, shortened inter-ring bonds, and rather short Pt-C bonds at 1.998(9)/2.00(1) \AA (Pt-Cmes) and 1.985(9)/1.99(1) \AA (Pt-Cbttz-2H+). Reversible redn. to (μ-bttz-2H+)[Pt(dmso)(mes)]2·- causes a high-energy shift of the charge transfer bands and the appearance of an unresolved EPR signal at g = 1.9905. [on SciFinder(R)]
%0 Journal Article
%1 Sarkar.2008
%A Sarkar, Biprajit
%A Schurr, Thilo
%A Hartenbach, Ingo
%A Schleid, Thomas
%A Fiedler, Jan
%A Kaim, Wolfgang.
%D 2008
%J Journal of Organometallic Chemistry
%K complex crystal cyclometalated dimethylsulfoxide electrochem mesityl mesityl;cyclometalation mol platinum redn structure tetrazine thienyl
%N 8-9
%P 1703--1706
%R 10.1016/j.jorganchem.2007.10.045
%T Double cyclometalation of bridging 3,6-bis(2-thienyl)-1,2,4,5-tetrazine in a dinuclear mesityl(dimethylsulfoxide)platinum(II) complex: Structure and properties
%V 693
%X 3,6-Bis(2-thienyl)-1,2,4,5-tetrazine (bttz) reacts with trans-Pt(dmso)2(mes)2, mes = mesityl = 2,4,6-trimethylphenyl, under twofold cyclometalation to yield structurally characterized (m-bttz-2H+)[Pt(dmso)(mes)]2 with uncoordinated thiophene sulfur atoms and bttz deprotonated in the 3,3' positions. The structural features include cis-positioned carbanionic ligands, twisted mesityl substituents, S-coordinated dmso ligands with the S:O bonds lying in the mol. plane, shortened inter-ring bonds, and rather short Pt-C bonds at 1.998(9)/2.00(1) \AA (Pt-Cmes) and 1.985(9)/1.99(1) \AA (Pt-Cbttz-2H+). Reversible redn. to (μ-bttz-2H+)[Pt(dmso)(mes)]2·- causes a high-energy shift of the charge transfer bands and the appearance of an unresolved EPR signal at g = 1.9905. [on SciFinder(R)]
@article{Sarkar.2008,
abstract = {3,6-Bis(2-thienyl)-1,2,4,5-tetrazine (bttz) reacts with trans-Pt(dmso)2(mes)2, mes = mesityl = 2,4,6-trimethylphenyl, under twofold cyclometalation to yield structurally characterized (\textgreek{m}-bttz-2H+)[Pt(dmso)(mes)]2 with uncoordinated thiophene sulfur atoms and bttz deprotonated in the 3,3' positions. The structural features include cis-positioned carbanionic ligands, twisted mesityl substituents, S-coordinated dmso ligands with the S:O bonds lying in the mol. plane, shortened inter-ring bonds, and rather short Pt-C bonds at 1.998(9)/2.00(1) {\AA} (Pt-Cmes) and 1.985(9)/1.99(1) {\AA} (Pt-Cbttz-2H+). Reversible redn. to {(μ-bttz-2H+)[Pt(dmso)(mes)]2}·- causes a high-energy shift of the charge transfer bands and the appearance of an unresolved EPR signal at g = 1.9905. [on SciFinder(R)]},
added-at = {2022-06-15T11:26:56.000+0200},
author = {Sarkar, Biprajit and Schurr, Thilo and Hartenbach, Ingo and Schleid, Thomas and Fiedler, Jan and Kaim, Wolfgang.},
biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2dafcbd478c610c160b30c6429ab0b338/huebleriac},
doi = {10.1016/j.jorganchem.2007.10.045},
interhash = {6af02cc457cf0d2f27f46bb53865667c},
intrahash = {dafcbd478c610c160b30c6429ab0b338},
journal = {Journal of Organometallic Chemistry},
keywords = {complex crystal cyclometalated dimethylsulfoxide electrochem mesityl mesityl;cyclometalation mol platinum redn structure tetrazine thienyl},
number = {8-9},
pages = {1703--1706},
timestamp = {2022-06-15T09:26:56.000+0200},
title = {Double cyclometalation of bridging 3,6-bis(2-thienyl)-1,2,4,5-tetrazine in a dinuclear mesityl(dimethylsulfoxide)platinum(II) complex: Structure and properties},
volume = 693,
year = 2008
}
