Mono- and Dinuclear Binding Modes of the 2,5-Bis(α-pyridyl)pyrrolate Ligand in Platinum(II) Complexes

被引:2
作者
Newman, Drew C. [1 ]
Gau, Michael R. [1 ]
Carroll, Patrick J. [1 ]
Goldberg, Karen, I [1 ]
机构
[1] Univ Penn, Dept Chem, Philadelphia, PA 19104 USA
基金
美国国家科学基金会;
关键词
PD(II); ANIONS; PT(II);
D O I
10.1021/acs.organomet.1c00152
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A series of platinum(II) complexes with the 2,5-bis(alpha-pyridyl)pyrrolate (PDP) ligand were synthesized. The ligand (X) trans to the central pyrrole nitrogen of PDP was found to play a key role in whether tridentate monomeric or bidentate clamshell dimer complexes were formed. When X = CH3 or C6H5, strong sigma-donor ligands, only dimeric clamshell structures were observed. In contrast, when X = CI or I, ligands with pi-donor properties, both dimeric and monomeric complexes could be prepared. The ability of the ligand framework to support monomeric complexes with pi-donor X-type ligands is attributed to the PDP ligand's ability to act as a competent pi-acid in the monomeric conformation.
引用
收藏
页码:1806 / 1810
页数:5
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