Structural and spectral studies of 1-phenylglyoxal bis(3-piperidylthiosemicarbazone) and its zinc(II), cadmium(II) and platinum(II) complexes

Alfonso Castineiras; Elena Bermejo; Douglas X. West; Lily J. Ackerman; Jesus Valdes-Martinez; Simon Hernandez-Ortega

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Structural and spectral studies of 1-phenylglyoxal bis(3-piperidylthiosemicarbazone) and its zinc(II), cadmium(II) and platinum(II) complexes

机译：1-苯基乙二醛双（3-哌啶硫基半脲酮）及其锌（II），镉（II）和铂（II）配合物的结构和光谱研究

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Zinc(II) and platinum(II) complexes of 1-phenylglyoxal bis(3-piperidylthiosemicarbazone), H_2Pgpip, have been prepared and the crystal structures of H_2Pgpip and the two metal complexes have been solved. The two arms of H_2Pgpip are on the same side of the carbon-carbon backbone and the N(2)H of the phenyl arm hydrogen bonds to the azomethine nitrogen of the aldehyde arm. Loss of the N(2)H hydrogens from both thiosemicarbazone moieties occurs for [Pt(Pgpip)], resulting in coordination of the dianion Pgpip as a tetradentate N_2S_2 ligand with the expected 5-5-5-chelate ring system. However, [Zn(HPgpip)Cl] involves the monoanion HPgpip on loss of the phenyl arm's N(2)H, resulting in a five-coordinate complex with coordination of the two azomethine nitrogens, a thione sulfur (aldehyde arm), a thiolato sulfur (phenyl arm) and an axial chloro ligand in an approximately square pyramidal arrangement.

机译：制备了1-苯基乙二醛双（3-哌啶基硫代半碳酮）H_2Pgpip的锌（II）和铂（II）配合物，并解析了H_2Pgpip和两种金属配合物的晶体结构。 H_2Pgpip的两个臂位于碳-碳主链的同一侧，苯基臂的N（2）H氢键与醛臂的甲亚胺氮键。 [Pt（Pgpip）]的两个硫半脲部分都失去了N（2）H氢，导致作为四齿N_2S_2配体的二价阴离子Pgpip与预期的5-5-5-螯合环系统配合。但是，[Zn（HPgpip）Cl]涉及单阴离子HPgpip的失去，失去了苯基臂的N（2）H，导致五坐标配合物与两个偶氮甲碱氮，硫酮硫（醛臂），硫代巯基的配位硫（苯基臂）和轴向氯配体以近似正方形的锥体排列。

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来源
《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |1999年第10期|共7页
作者
Alfonso Castineiras; Elena Bermejo; Douglas X. West; Lily J. Ackerman; Jesus Valdes-Martinez; Simon Hernandez-Ortega;
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正文语种 eng
中图分类化学;无机化学;
关键词
1-phenylglyoxal; bis(thiosemicarbazone); zinc; platinum; structure;

机译：1-苯基乙二醛;双（硫代半脲）;锌;铂;结构;

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Structural and spectral studies of 1-phenylglyoxal bis(3-piperidylthiosemicarbazone) and its zinc(II), cadmium(II) and platinum(II) complexes

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