Iodine(I) and Silver(I) Complexes of Benzoimidazole and Pyridylcarbazole Derivatives

被引：19

作者：

Taipale, Essi ^{[1
]}

Siepmann, Marcel ^{[1
]}

Khai-Nghi Truong ^{[1
]}

Rissanen, Kari ^{[1
]}

机构：

[1] Univ Jyvaskyla, Dept Chem, POB 35,Survontie 9B, Jyvaskyla 40014, Finland

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2021年 / 27卷 / 69期

基金：

芬兰科学院;

关键词：

halogen(I); halogen bonds; NMR spectroscopy; supramolecular chemistry; X-ray crystallography; HALOGEN BOND; COORDINATION; SYMMETRY; REAGENTS;

D O I：

10.1002/chem.202103152

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The synthesis of iodine(I) complexes with either benzoimidazole or carbazole-derived sp(2) N-containing Lewis bases is described, as well as their corresponding silver(I) complexes. The addition of elemental iodine to the linear two-coordinate Ag(I) complexes produces iodine(I) complexes with a three-center four-electron (3c-4e) [N-I-N](+) bond. The H-1 and H-1-N-15 HMBC NMR studies unambiguously confirm the formation of the complexes in all cases via the [N-Ag-N](+)->[N-I-N](+) cation exchange, with the N-15 NMR chemical shift change between 94 to 111 ppm when compared to the free ligand. The single crystal X-ray crystallographic studies on eight I+ complexes revealed highly symmetrical [N-I-N](+) bonds with I-N bond distances of 2.21-2.26 angstrom and N-I-N angles of 177-180 degrees, whilst some of the corresponding Ag+ complexes showed a clear deviation from linearity with N-Ag-N angles of ca. 150 degrees and Ag-N bond distances of 2.09-2.18 angstrom.

引用

页码：17412 / 17419

页数：8

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