57Fe Mossbauer studies of the bulky ring-substituted ferrocenes;: [C5Me4(p-C6H4Y)]2Fe

被引：2

作者：

Björgvinsson, M ^{[1
]}

Helgason, O ^{[1
]}

Haraldsson, MH ^{[1
]}

机构：

[1] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland

来源：

HYPERFINE INTERACTIONS | 2002年 / 139卷 / 1-4期

关键词：

Spectroscopy; Thin Film; Crystal Structure; Molecular Structure; Structural Difference;

D O I：

10.1023/A:1021275422567

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

A series of bulky ring-substituted ferrocenes [eta(5)-C5Me4(p-C6H4Y)](2)Fe (Y = H, Me, OMe, F, Cl or CF3) or (Cp-xpy)(2)Fe has been synthesized and studied by Fe-57 Mossbauer spectroscopy at different temperatures. The hyperfine parameters for all the samples are almost identical, except for Y = H, (Cp-xph)(2)Fe, where the quadrupole splitting (QS) is significantly larger. The X-ray crystal structure was determined for (Cp-xph)(2)Fe, (Cp-xpcl)(2)Fe and (Cp-xpom)(2)Fe. Two different orientations of the C6H4Y rings are observed in the molecular structures; a perpendicular one for (Cp-xph)(2)Fe and a parallel one for (Cp-xpcl)(2)Fe and (Cp-xpom)(2)Fe. However, this structural difference is not reflected in a study on the temperature dependency of the recoil free fraction of these three ferrocenes.

引用

页码：113 / 118

页数：6

共 11 条

[1]

[Anonymous], ADV ORGANOMET CHEM

[2] Preparation and characterization of (C5Me4Ph)TiCl3, the oxochloride complexes [(C5Me4Ph)TiCl2](2)(mu-O) and [(C5Me4Ph)TiCl(mu-O)](3) and the oxo-complex [(C5Me4Ph)Ti](4)(mu-O)(6). The X-ray crystal structures of [(C5Me4Ph)TiCl2](2)(mu-O) and [(C5Me4Ph)Ti](4)(mu-O)(6) [J].