Dinuclear nucleobase-anion-bridged complexes of Pd II and Pt II with 1-methylimidazol-2-yl pyridin-2-yl ketone: synthesis, crystal structure and solution behaviour
Chiral Tripodal Ligand Containing Three <i>N</i>-Heterocyclic Donor Functions and Its Copper Complexes: Crystallization of [LCu<sup>I</sup>]<sub>2</sub><sup>2+</sup>/[L<sub>2</sub>Cu<sup>II</sup>]<sup>2+</sup> Stereoisomers and Tyrosinase Activity
A novel chiral ligand system L containing one pyridyl and two imidazolyl donorfunctions has been synthesized and investigated with respect to its CuI and CuII coordination chemistry. Reaction with [Cu(MeCN)4]PF6 and [Cu(MeCN)4]OTf led to the dimeric complexes [LCu]2X2 (1, X = PF6; 2, X = OTf) with the ligands L in different configurations (R,S). The ligand matrix formed in these complexes can also
合成并研究了新颖的手性配体体系L,其包含一个吡啶基和两个咪唑基供体功能,并对其Cu I和Cu II配位化学进行了研究。与[Cu(MeCN)4 ] PF 6和[Cu(MeCN)4 ] OTf的反应生成具有配体L in的二聚体复合物[LCu] 2 X 2(1,X = PF 6 ; 2,X = OTf)。不同的配置(R,S)。在这些络合物中形成的配体基质也可以包含一个Cu II离子,而不是两个Cu I离子,从而可以产生[L 2 Cu] X 2和[LCu] 2 X 2的混合晶体。可以通过分别用乙腈中的O 2处理1和2来获得纯化合物[L 2 Cu] X 2(3,X = PF 6;4,X = OTf)。3从相应的溶液中结晶成两个具有不同构型的L分子,而4则在(S,S)或(R,R中)配置。当通过1与AgPF 6反应合成该化合物时,除先前分离的晶体外,还获得了包含3的类似非对映异构体的晶体。用O 2作为乙
Alkene analogues of bis(N-donor)ketone ligands: ruthenium(II) complexes containing 1-(pyridin-2-yl)-1-(N-methylimidazol-2-yl)ethene and 1,1-bis(N-methylimidazol-2-yl)ethene ((mim)2CCH2), and structural studies of [Ru(bpy)2{(mim)2CCH2}][PF6]2 (bpy=2,2′-bipyridine) and the pyridine-2-carboxylate (pyCO2−) complex [Ru(bpy)2(pyCO2)][PF6]
作者:Allan J. Canty、Peter R. Traill、Brian W. Skelton、Allan H. White
DOI:10.1016/s0020-1693(96)05357-1
日期:1997.2
The complexes [Ru(bpy)2(N∼N)][PF6]2 have been synthesized from reactions of cis-[RuCl2(bpy)2]·2H2O (bpy=2,2′-bipyridine) and the bidentate ligands N∼N ((mim)2CCH2 and (py)(mim)CCH2 where py=pyridin-2-yl and mim=N-methylimidazol-2-yl) in aqueous ethanol; with the analogue (py)(mim)CO, the pyridine-2-carboxylate complex [Ru(bpy)2(pyCO2)][PF6] is formed. The complexes [Ru(bpy)2(mim)2CCH2}][PF6]2
Co-ordination chemistry of pyridyl and N-methylimidazolyl ketones. Synthetic and X-ray structural studies of copper(II), nickel(II), and dimethylgold(III) complexes
作者:Peter K. Byers、Allan J. Canty、Lutz M. Engelhardt、Jennifer M. Patrick、Alian H. White
DOI:10.1039/dt9850000981
日期:——
Di-2-pyridyl ketone (dpk) reacts with dimethylgold(III) nitrate in water to form the complex [AuMe2(dpk·H2O)]NO3 in which the ligand has been hydrated to form a geminal diol. The closely related ketones 2-pyridyl N-methyl-2-imidazolyl ketone (pik) and di(N-methyl-2-imidazolyl) ketone (dik) react with AuIIIMe2 nitrate to form complexes that do not involve hydration of the ligand, [AuMe2(L)]NO3(L = pik
在水中,二-2-吡啶基酮(dpk)与硝酸二甲基金(III)反应形成络合物[AuMe 2(dpk·H 2 O)] NO 3,其中配体已水合形成双酚。密切相关的酮2-吡啶基N-甲基-2-咪唑基酮(pik)和二(N-甲基-2-咪唑基)酮(dik)与Au III Me 2硝酸盐反应形成不涉及水合的配合物配体,[AuMe 2(L)] NO 3(L = pik或dik)。它们与硫酸铜(II)和硝酸镍(II)类似地反应,形成[Cu(pik)(SO 4)]·O.5H 2 O,[Cu(dik)(SO 4)]·2H 2 O [Ni(pik)2(NO 3)2 ]·0.5H 2 O和[Ni(dik)2(NO 3)2 ]·1.5MeOH; DPK形式[镍(DPK·H 2 O)2(NO 3)2 ]·0.5H 2 O于与镍的反应(II)硝酸盐。的晶体结构[AuMe 2(DPK·H 2 O)] NO 3和[Cu(上DIK)(SO
A Novel Tripodal Ligand Containing Three Different<i>N</i>-Heterocyclic Donor Functions and Its Application in Catechol Dioxygenase Mimicking
作者:Marit Wagner、Christian Limberg、Thomas Tietz
DOI:10.1002/chem.200802591
日期:2009.5.25
Prominent donors: A pyridyl, an imidazolyl, and a pyrazolyl donorfunction are part of the noveltripodalligand depicted, which thus combines three of the most prominent donors applied in ligands for bioinorganic chemistry within one coordination unit. To exploit its behaviour and potential, first investigations have been carried out in relation to catecholdioxygenase mimicry.
Synthesis and Structures of the Ligands 1-Methylimidazol-2-yl(pyridin-2-yl)methanone {(py)(mim)CO} and 1-Benzylimidazol-2-yl(1-phenylaldimine) (PhN=CHbim) as their Tetracarbonylmolybdenum(0) Complexes [Mo(CO)4(L2-N,N′)]
作者:Michael P. Batten、Allan J. Canty、Kingsley J. Cavell、Brian W. Skelton、Allan H. White
DOI:10.1002/zaac.200500531
日期:2006.4
The complexes [Mo(CO)4(L2-N,N')] [L2 = 1-methylimidazol- 2-yl(pyridin-2-yl)methanone and 1-benzylimidazol-2-yl(1- phenylaldimine)] have been synthesized from hexacarbonylmolybdenum(0) in order to define the coordination characteristics of the bidentate nitrogen-donor ligands; the complexes exhibit distorted octahedral coordination for molybdenum(0) and cis-bidentate ligand configurations.
配合物 [Mo(CO)4(L2-N,N')] [L2 = 1-methylimidazol-2-yl(pyridin-2-yl)methanone and 1-benzylimidazol-2-yl(1-phenylaldimine)]由六羰基钼(0)合成,以定义二齿氮供体配体的配位特性;对于钼 (0) 和顺式双齿配体构型,配合物表现出扭曲的八面体配位。