A New One-Dimensional Platinum System Consisting of Carboxylate-Bridged cis-Diammineplatinum Dimers1
A New One-Dimensional Platinum System Consisting of Carboxylate-Bridged cis-Diammineplatinum Dimers1
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由羧酸桥顺式二氨铂二聚体组成的新型一维铂体系1
DOI：
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发表时间：
1998
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通讯作者：
T. Nakano
中科院分区：
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作者：
K. Sakai;M. Takeshita;Y. Tanaka;Takuma Ue;Masayuki Yanagisawa;M. Kosaka;Taro Tsubomura;Masamichi Ato;T. Nakano
为了开发具有无限Pt−Pt键的新的一维铂链固体，已经制备了几种羧酸根桥接的顺式二氨合铂二聚体并进行了结构表征。对于与醋酸盐双桥连的二聚体，制备了五种不同的盐[Pt 2（NH3）4（μ-CH 3CO 2）2]X2·nH 2 O（X2，n =（ClO 4）2，2，1;（NO3）2，1，2;（BF 4）2，4，3;（PF 6）2，2，4;（SiF 6），4，5）。化合物5的晶体结构表明，由于氨基与乙酸根的氧原子之间形成氢键，可以形成一个无限长的二聚体链[Pt 2（NH3）4（μ-CH 3CO 2）2] n2 n+，证明了N2 O2配位层可能作为氢键部分协助形成无限长的二聚体链.一个由醋酸根和氢氧化物配体桥接的不对称二聚体[Pt 2（NH3）4（μ-CH 3CO 2）（μ-OH）]（SiF 6）（6）也被分离出来作为5的副产物，并且一个类似的一维骨架[Pt 2（NH3）4（μ-CH 3CO 2）（μ-OH）] n2 n+已经通过X射线衍射表征。另外，一些乙醇酸盐...
With the aim of developing new 1D platinum chain solids having infinite Pt−Pt bonds, several carboxylate-bridged cis-diammineplatinum dimers have been prepared and structurally characterized. For a dimer doubly bridged with acetates, five different salts [Pt2(NH3)4(μ-CH3CO2)2]X2·nH2O (X2, n = (ClO4)2, 2, 1; (NO3)2, 1, 2; (BF4)2, 4, 3; (PF6)2, 2, 4; (SiF6), 4, 5) have been prepared. The crystal structure of 5 has revealed that an infinite dimer chain [Pt2(NH3)4(μ-CH3CO2)2]n2n+ can be given as a result of hydrogen bond formation between the ammines and the oxygen atoms of acetates, demonstrating our prediction that the N2O2 coordination sphere may serve as a hydrogen-bonding moiety to assist formation of an infinite dimer chain. An asymmetric dimer bridged by both acetate and hydroxide ligands, [Pt2(NH3)4(μ-CH3CO2)(μ-OH)](SiF6) (6), has also been isolated as a byproduct of 5, and a similar 1D framework, [Pt2(NH3)4(μ-CH3CO2)(μ-OH)]n2n+, has been characterized by X-ray diffraction. In addition, some glycolate...