Gold(<scp>I</scp>) complexes derived from secondary phosphines: [{Au(µ-PR<sub>2</sub>)}<sub>n</sub>],[(AuBr)<sub>2</sub>(µ-PPh<sub>2</sub>)]<sup>–</sup>, [AuX(PHR<sub>2</sub>)], and [{Au(PHR<sub>2</sub>)<sub>n</sub>}]<sup>+</sup>. Crystal structure of [AuBr(PHPh<sub>2</sub>)]
作者:David B. Dyson、R. V. Parish、Charles A. McAuliffe、Robin G. Pritchard、Roy Fields、Brian Beagley
DOI:10.1039/dt9890000907
日期:——
The interaction of secondary phosphines with a variety of gold(I) compounds has been studied. In the presence of bases or polar solvents, polymeric gold(I) phosphides [Au(µ-PR2)}n] are formed. When these are obtained in the absence of additional ligands they are soluble, presumably with ring structures. More usually, insoluble forms are found, presumably with chain structures. The probable formation
已经研究了次膦与各种金(I)化合物的相互作用。在碱或极性溶剂的存在下,形成聚合的金(I)磷化物[Au(µ-PR 2)} n ]。当在没有其他配体的情况下获得它们时,它们是可溶的,大概具有环结构。更通常地,发现不溶形式,大概具有链结构。讨论了由[AuX(PH R 2)]型配合物形成这些物质的可能性,并分离了后者的配合物(X = Cl或Br,R = Ph或对甲苯基)和新型单体磷酸酯桥联阴离子[(AuBr)2(µ-PPh 2)] –描述。在非极性溶剂中,会形成一系列仲膦配合物,[Au(PHPh 2)n ] +(n = 2-4),但是对于n = 3而言,似乎歧化不稳定。该化合物的特征在于31 P nmr和197 AuMössbauer光谱学,[AuBr(PH Ph 2)]情况下的X射线晶体学。
Substitution of bi- and mono- dentate Lewis bases in organocobalt(III) complexes holding a tridentate ligand: Routes to novel series of organocobalt compounds
作者:I. Ya. Levitin、A.N. Kitaigorodskii、A.T. Nikitaev、V.I. Bakhmutov、A.L. Sigan、M.E. Vol'Pin
DOI:10.1016/s0020-1693(00)88295-x
日期:1985.5
allows the chelating diamine in starting cation complexes to be replaced by weaker bases. Step 2 is suitable for introducing ligands effectively binding Co(III) ion, viz. typical chelating molecules and anions, or strong uniacidic bases. Step 3 permits the latter monodentate ligands to be exchanged for weaker bases. A variety of cationic, neutral and anionic complexes were thus obtained. Stoichiometry
Organocobalt(III) complexes with Schiff bases derived from a β-diketone bearing both an alkyl and an aryl group have been prepared. The template syntheses using benzoylacetone and ethylenediamine as complexing agents provide a route to alkylcobalt chelates with the corresponding tri- and tetradentate Schiff bases. However, if a β-diketone with two aryl groups, e.g. dibenzoylmethane, was employed as
已经制备了具有衍生自带有烷基和芳基的β-二酮的席夫碱的有机八烷基(III)配合物。使用苯甲酰基丙酮和乙二胺作为络合剂的模板合成为烷基钴螯合物与相应的三齿和四齿席夫碱提供了一条途径。但是,如果使用带有两个芳基的β-二酮(例如二苯甲酰甲烷)作为起始的酮烯醇成分,则不会检测到有机金属产物;因此,如果使用有机硅,则不能检测到任何有机金属产物。一种新的钴(II)的混合配体“无机”螯合物,[Co O = C(Ph)CH = C(Ph)O} 2((en)],而是孤立的。已经通过X射线技术确定了其结构以及具有由苯甲酰基丙酮和乙二胺组成的三齿席夫碱的烷基钴配合物之一的结构。总结了具有席夫碱的烷基钴配合物模板合成的当前范围。
Mechanistic investigation of molecular geometry, intermolecular interactions and spectroscopic properties of pyridinium nitrate
作者:Ivaylo Tankov、Rumyana Yankova
DOI:10.1016/j.saa.2019.04.027
日期:2019.8
pyridinium nitrate ([H–Pyr]+[NO3]−) have been determined by means of density functional theory (DFT) at B3LYP/6-311++G (2d,2p) level. The chemical bonds nature and the intermolecular interactions in the title compound were investigated using the Quantum theory of atoms in molecules and Hirshfeld surface analysis. Natural bond orbital analysis has been performed in order to elucidate the hybridization and delocalization
Cation–Cation Interaction in Complexes of Np(V) Benzoate and Salicylate with N-Containing Molecular Ligands
作者:I. A. Charushnikova、N. N. Krot、V. P. Perminov
DOI:10.1134/s1066362220010026
日期:2020.1
The hydrothermal method was used to obtain two new compounds of Np(V): benzoate [(NpO2)3(py) (C7H5O2)3(H2O)2] (1) and salicylate [(NpO2)(phen)(HOC7H4O2)] (2), where py = pyridine and phen = 1,10-phenanthroline. An X-ray diffraction analysis of these compounds demonstrated that NpO+2 cations are bound together by cation-cation bonds to form distorted squared networks in compound 1 and zigzag chains
使用水热法获得了两种新的Np(V)化合物:苯甲酸酯[(NpO 2)3(py)(C 7 H 5 O 2)3(H 2 O)2 ](1)和水杨酸盐[[NpO 2)(phen)(HOC 7 H 4 O 2)](2),其中py =吡啶,phen = 1,10-菲咯啉。该NPO这些化合物表现出的X射线衍射分析+ 2个阳离子通过阳离子阳离子键结合在一起,以形成扭曲平方网络在化合物1中和锯齿链2。