THE CRYSTAL AND MOLECULAR-STRUCTURES OF 2,5-BIS(2'-PYRIDYL)-PYRAZINE (BPPZ) AND SOME 3D TRANSITION-METAL COMPLEXES

被引：0
|
作者：
NEELS, A [1 ]
STOECKLIEVANS, H [1 ]
机构：
[1] UNIV NEUCHATEL,INST CHIM,AVE BELLEVAUX 51,CH-2000 NEUCHATEL,SWITZERLAND
来源：
CHIMIA | 1993年 / 47卷 / 06期
关键词：
D O I：
暂无
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The symmetrical ligand 2,5-bis(2'-pyridyl)pyrazine (BPPZ) exists in the extended form with a dihedral angle between the pyrazine and the pyridine rings of 7.88-degrees. BPPZ forms symmetrical bis(bidenate) complexes with Mn(II), Fe(II), and Cu(II). The dihedral angles between the best planes through the planar pyrazine ring and the pyridine ring are 2.6-degrees in the Mn(II) complex, 4-degrees in the Fe(II) complex, and 8.5-degrees in the Cu(II) complex. The metal-N(py) bond distances are shorter than standard values and similar in length to the metal-N(pz) distances.
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页码：198 / 202
页数：5
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