Far-infrared assignments for bridging cobalt-halogen stretching vibrations in several coordination compounds
Far-infrared assignments for bridging cobalt-halogen stretching vibrations in several coordination compounds
复制标题
远红外分配用于桥接几种配位化合物中的钴-卤素伸缩振动
DOI：
10.1021/ic50079a008
复制
发表时间：
1969
影响因子：
4.6
通讯作者：
K. Nakamoto
中科院分区：
文献类型：
--
作者：
C. Postmus;J. Ferraro;A. Quattrochi;K. Shobatake;K. Nakamoto
C0L2X2型钴（II）配位化合物(L= py, 4-Cl (py), 4-Br (py))；已知X= Cl或Br)以聚合和单体形式存在。通过跟踪两种形式的低频谱带的出现和消失，并研究高压对这些谱带的影响，首次确定了桥接CoX拉伸振动（rbCoX）的分配。PbCoCl振动发生在155 ~ 186 cm-1区域。rbCoBr振动发生在118-143 cm-1区域。末端CoX伸缩振动（rtCoCl）发生在306 ~ 347 cm-1区域；rtCoBr发生在265 cm-1。
Some coordination compounds of cobalt (II) of the type C0L2X2 (L= py, 4-Cl (py), or 4-Br (py); X= Cl or Br) are known to exist in polymeric and monomeric forms. By followingthe appearance and disappearance of bands in the low-frequency spectra of both forms and by studying the effects of high pressure on these bands, assignments of bridging CoX stretching vibrations (rbCoX) havebeen made for the first time. The PbCoCl vibrations occur in the 155-186-cm-1 region. The rbCoBr vibrations occur in the 118-143-cm-1 region. The terminal CoX stretching vibrations (rtCoCl) occur in the 306-347-cm-1 region; the rtCoBr occur at 265 cm-1.