Syntheses, electrochemistry, and spectroscopy of dirhodium(<scp>II</scp>) tetra-acetamidate and tetrakis(trifluoroacetamide) complexes with axial Group 15 substituents. The X-ray crystal structures of [Rh<sub>2</sub>(CH<sub>3</sub>CONH)<sub>4</sub>(AsPh<sub>3</sub>)<sub>2</sub>] and [Rh<sub>2</sub>(CH<sub>3</sub>CONH)<sub>4 –n</sub>(CH<sub>3</sub>CO<sub>2</sub>)<sub>n</sub>(MPh<sub>3</sub>)<sub>2</sub>], M = As or Sb, n≈ 1
作者:Stephen P. Best、Peter Chandley、Robin J. H. Clark、Simon McCarthy、Michael B. Hursthouse、Paul A. Bates
DOI:10.1039/dt9890000581
日期:——
oxygen or nitrogen atoms trans to each other. The wavenumber of the rhodium–rhodium stretching mode [ν(RhRh)] has been identified from the resonance Raman spectra and found to be 273.5, 283.5, and 294 cm–1 for the phosphine, arsine, and stibine tetra-acetamidate complexes, respectively; ν(RhRh) is insensitive to trifluoroacetamidate for acetamidate substitution despite the fact that the oxidation potential
Interligand interactions affecting specific metal bonding to nucleic acid bases: X-ray crystal structure of tetrakis-µ-acetamidatobis(theophylline)rhodium(<scp>II</scp>)-rhodium(<scp>III</scp>) nitrate monohydrate
X-Raycrystalstructure analysis of tetrakis-µ-acetamidatobis(theophylline)rhodium(II)-rhodium(III) nitratemonohydrate, an adduct produced by oxidation with nitric acid, has shown that the dirhodium-tetra-acetamidato nucleus is occupied at the two axial positions by the N(7) site of the theophylline base; interligand hydrogen bond formation between the acetamidate nitrogen and the exocyclic oxygen
Photoinduced Ligand Exchange and Covalent DNA Binding by Two New Dirhodium Bis-Amidato Complexes
作者:Scott J. Burya、Alycia M. Palmer、Judith C. Gallucci、Claudia Turro
DOI:10.1021/ic3017886
日期:2012.11.5
Two new dirhodiumcomplexes, the head-to-tail (H,T) and head-to-head (H,H) isomers of cis-[Rh2(HNOCCH3)2(CH3CN)6]2+, were synthesized, separated, and characterized following the reaction of Rh2(HNOCCH3)4 with trimethyloxonium tetrafluoroborate in CH3CN. The products were characterized by 1H NMR spectroscopy, mass spectrometry, elemental analysis, and single crystal X-ray diffraction. Each bis-amidato
Two Types of Heterometallic One-Dimensional Alignment Composed of Acetamidate-Bridged Dirhodium and Pivalamidate-Bridged Diplatinum Complexes
作者:Kazuhiro Uemura、Toru Kanbara、Masahiro Ebihara
DOI:10.1021/ic500305n
日期:2014.5.5
chains, [Rh2(acam)4}Pt2(piam)2(NH3)4}2]n(CF3SO3)4n·2nMeOH (2, where acam = acetamidate, piam = pivalamidate) and [Rh2(acam)4}Pt2(piam)2(NH3)4}]n(CF3CO2)2n·2nEtOH (3), have been synthesized and characterized by single-crystal X-ray analyses. The chain structures in 2 and 3 are composed of two kinds of dinuclear complexes, [Rh2(acam)4] (i.e., [Rh2]) and [Pt2(piam)2(NH3)4] (i.e., [Pt2]), where Rh and
两种类型的杂金属一维链,[Rh 2(acam)4 } Pt 2(piam)2(NH 3)4 } 2 ] n(CF 3 SO 3)4 n ·2 n MeOH(2,其中acam =乙酰胺酸盐,piam = pivalamidate)和[Rh 2(acam)4 } Pt 2(piam)2(NH 3)4 }] n(CF 3 CO 2)2 n ·2 nEtOH(3)已合成,并通过单晶X射线分析进行了表征。2和3中的链结构由两种双核络合物[Rh 2(acam)4 ](即[Rh 2 ])和[Pt 2(piam)2(NH 3)4 ](即[ Pt 2 ]),其中Rh和Pt原子通过金属-金属键轴向连接。在2和3中,每个复合物一维对齐为-[Rh 2 ] – [Pt 2 ] – [Pt 2 ]} n –或-[Rh 2] – [Pt 2 ]} n –分别由[Pt 2 ]的不同异构体引起的排列不同,这些异