Pseudopolymorphism of [2,5-bis-(2-pyridyl)pyrazine]ferrocenyl-(methyl)boron hexafluorophosphate

被引：6

作者：

Ding, L

Wagner, M

Bolte, M

机构：

[1] Goethe Univ Frankfurt, Inst Organ Chem, D-60439 Frankfurt, Germany

[2] Goethe Univ Frankfurt, Inst Anorgan Chem, D-60439 Frankfurt, Germany

来源：

ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY | 2001年 / 57卷 / 02期

关键词：

D O I：

10.1107/S0108270100017741

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two pseudopolymorphs of [2,5-bis(2-pyridyl)pyrazine]ferrocenyl(methyl)boron hexafluorophosphate have been determined at 173 K, namely the diethyl ether hemisolvate, [Fe(C5H5)(C20H17BN4)]PF6.0.5C(4)H(10)O, (I), which forms red crystals with Z' = 1, and the acetonitrile hemisolvate, [Fe(C5H5)(C20H17BN4)]PF6.0.5CH(3)CN, (II), which yields green-brown crystals with Z' = 2. Despite the different crystal packing, the cations in (I) and (II) are similar. The 2,5-bis(2-pyridyl)pyrazine moiety is almost planar and displays bending along its long axis compared with free 2,5-bis(2-pyridyl)pyrazine. It is remarkable that both crystals were obtained from the same acetonitrile/diethyl ether solution.

引用

页码：162 / 164

页数：3

共 18 条

[1]

BRUCE DW, 1992, INORGANIC MAT

[2]

de Biani FF, 1997, INORG CHEM, V36, P2103

[3]

de Biani FF, 1997, ORGANOMETALLICS, V16, P4776

[4]

Fontani M, 1998, EUR J INORG CHEM, P1453