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二水合四（吡啶-2-羧酸根-κN，O）钯（IV）

Tetra-kis(pyridine-2-carboxyl-ato-κN,O)palladium(IV) dihydrate.

作者信息

Kim Nam-Ho, Ha Kwang

机构信息

School of Applied Chemical Engineering, The Research Institute of Catalysis, Chonnam National University, Gwangju 500-757, Republic of Korea.

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2009 Oct 3;65(Pt 11):m1274. doi: 10.1107/S1600536809039270.

DOI:10.1107/S1600536809039270
PMID:21578046
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2971183/
Abstract

The asymmetric unit of the title compound, [Pd(C(6)H(4)NO(2))(4)]·2H(2)O, consists of a quarter of a neutral Pd(IV) complex and half of a solvent water mol-ecule. In the complex, the Pd(IV) ion is located on a fourfold inversion axis and eight-coordinated in a distorted dodeca-hedral environment by four N and four O atoms from four symmetry-related pyridine-2-carboxyl-ate (pic) anionic ligands. In the crystal, the water mol-ecule is involved in O-H⋯O hydrogen bonding, and weak inter-molecular C-H⋯O hydrogen bonds occur. There are also inter-molecular π-π inter-actions between adjacent pyridine rings, with a centroid-centroid distance of 3.715 (3) Å.

摘要

标题化合物[Pd(C₆H₄NO₂)₄]·2H₂O的不对称单元由四分之一的中性Pd(IV)配合物和半个溶剂水分子组成。在该配合物中，Pd(IV)离子位于四重反演轴上，在扭曲的十二面体环境中由来自四个对称相关的吡啶-2-羧酸根（pic）阴离子配体的四个N原子和四个O原子八配位。在晶体中，水分子参与O-H⋯O氢键作用，且存在弱的分子间C-H⋯O氢键。相邻吡啶环之间还存在分子间π-π相互作用，质心间距为3.715 (3) Å。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/6313a5a3dc31/e-65-m1274-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/d80bd845c347/e-65-m1274-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/019a0c129f10/e-65-m1274-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/6313a5a3dc31/e-65-m1274-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/d80bd845c347/e-65-m1274-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/019a0c129f10/e-65-m1274-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/dfba/2971183/6313a5a3dc31/e-65-m1274-fig3.jpg

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