[Pd(HL)Cl2] and [PdL2], where HL is 2-(3-pyrazolyl)pyridine

被引：40

作者：

Ward, MD ^{[1
]}

Fleming, JS ^{[1
]}

Psillakis, E ^{[1
]}

Jeffery, JC ^{[1
]}

McCleverty, JA ^{[1
]}

机构：

[1] Univ Bristol, Sch Chem, Bristol BS8 1TS, Avon, England

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-CRYSTAL STRUCTURE COMMUNICATIONS | 1998年 / 54卷

关键词：

D O I：

10.1107/S0108270197016399

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The complexes cis-[Pd(HL)Cl-2] {dichloro[2-(3-pyrazolyl-N-2)pyridine-N] palladium(II), [PdCl2(C8H7N3)]} and trans-[PdL2] {bis[2-(3-pyrazolyl-N-2)pyridinato-N]palladium(II), [Pd(C8H6N3)(2)]} were isolated as byproducts from preparations of palladium(II) complexes with the podand ligand tris[3-(2-pyridyl)pyrazol-1-yl]-hydroborate, [HBL3](-). Both have square-planar coordination geometries. In cis-[Pd(HL)Cl-2], the Ligand HL acts as a neutral bidentate chelate. In [PdL2], which has a trans geometry, the pyrazole N-1 position is deprotonated. This has two consequences: (a) steric interference with the pyridyl H-6 proton of the alternate ligand is removed, and (b) inter-ligand intramolecular hydrogen bonding occurs between the pyridyl H-6 proton and the deprotonated pyrazolyl N-1 atom.

引用

页码：609 / 612

页数：4

共 7 条

[1] STRUCTURAL CHEMISTRY OF THE PLATINUM GROUP-METALS - MCL2(BPY) (M = PD, PT, BPY = 2,2'-BIPYRIDINE) [J].