Abstract A number of oxomolybdenum (VI) and (IV) complexes with potentially tridentate ONS donor Schiff bases of S-benzyl and S-methyl dithiocarbazates with salicylaldehyde have been synthesized. The Mo(VI) complexes are cis -dioxo, MoO 2 L (where L= H 2 L 1 and H 2 L 2 ) with one coordination site available for substrate binding. The Mo(IV) complexes, MoOL, are derived from the corresponding Mo(VI)-dioxo
摘要合成了许多具有潜在的三齿ONS供体的S-苄基和S-甲基二硫代氨基甲酸酯与水杨醛的氧钼(VI)和(IV)配合物。Mo(VI)配合物是顺式-dioxo,MoO 2 L(其中L = H 2 L 1和H 2 L 2),其中一个配位点可用于底物结合。Mo(IV)配合物MoOL是通过与PPh 3羰基合成从相应的Mo(VI)-二氧杂配合物衍生而来的。通过元素分析,UV,IR和1 H NMR光谱,磁化率测量,溶液中的摩尔电导率以及循环伏安法对络合物进行表征。在结晶学上表征了两个配合物MoO 2 L 1和MoO 2 L 2。结构表明,钼受体中心存在于扭曲的八面体NO 4 S供体环境中。
Multinuclear magnetic resonance and related studies on some organotin(IV) complexes of dithiocarbazates
作者:Anil Saxena、J.P. Tandon
DOI:10.1016/s0277-5387(00)87090-4
日期:1983.1
Synthesis, characterization and geometrical features of pentacoordinated dibutyltin(IV) dithiocarbazate complexes of the type n-Bu2Sn L (where L = dianion of -methyl-B-N (2-hydroxy-phenyl) methylene and methyl dithiocarbazate are described. These are obtained as viscous oils from the reactions of n-Bu2SnO with equimolar proportions of the ligands in benzene. On the basis of UV, IR, NMR (1H, 13C, 119Sn)
n -Bu 2 Sn L(其中L = -甲基-BN(2-羟基-苯基)亚甲基的二价阴离子和二硫代氨基甲酸甲酯)的五配位二丁基锡(IV)二硫代氨基甲酸配合物的合成,表征和几何特征n- Bu 2 SnO与等摩尔配体在苯中的反应而得的粘性油。基于UV,IR,NMR(1 H,13 C,119(Sn)光谱与质谱碎裂模式一起提出了三角双锥几何形状。N原子可能占据轴向位点,而其余两个供体原子O和S和二丁基位于赤道平面内。这些复合物对P.388淋巴细胞白血病系统具有活性。
Heterobimetallic compounds [L′OVV(μ-O)MIIIL]n (n = 1, M = Mn, 1–5; n = 2, M = Fe, 6 and 7) containing a discrete unsupported VV–O–MIII bridge have been synthesized through a targeted synthesis route. In the V–O–Mn-type complexes, the vanadium(V) centers have a square-pyramidal geometry, completed by a dithiocarbazate-based tridentate Schiff-base ligand (H2L′), while the manganese(III) centers have either a square-pyramidal
Novel six-coordinate oxorhenium(V) ‘3+2’ mixed-ligand complexes carrying the SNO/SN donor atom set
作者:F Mévellec、A Roucoux、N Noiret、H Patin
DOI:10.1016/s0020-1693(01)00797-6
日期:2002.4
Ligand exchange reactions of oxorhenium(V) precursors with bidentate SN and tridentate Schiff bases derived from the condensation of ketones or aldehydes with dithiocarbazic acid methyl ester (H2NNHC(S)SCH3) produce novel ‘3+2’ mixed-ligand complexes carrying the SNO/SN donor atom set. Thus, reactions of either [NBu4][ReOCl4] or Na[ReO(Gluconate)2] with SNO ligands (H2Ln) or a mixture of bidentate
配体oxorhenium(V)与二齿SN和三齿席夫碱从酮或醛与dithiocarbazic酸甲酯(H的缩合衍生的前体的交换反应2 NNHC(S)SCH 3)产生新颖“3 + 2带有SNO / SN供体原子集的混合配体络合物。因此,[NBu 4 ] [ReOCl 4 ]或Na [ReO(葡糖酸盐)2 ]与SNO配体(H 2 L n)或双齿SN(HL m)和三齿SNO(H 2 L n)的混合物反应在甲醇溶液中分别导致[ReO(L n)(HLÑ)]和[REO(L Ñ)(L米)],结合一个三齿双阴离子小号- NO -供体的席夫碱(L)和一个二齿阴离子小号- ñ供体配体(HL)。single周围的配位几何是扭曲的八面体,每个配体的两个SN供体原子组定义了赤道面,而顶端位置被三齿SNO配体(L)的氧代基团和氧原子占据,如单晶所示。 [ReO(L 1)(HL 1)] 1的X射线衍射结构。
Chemistry of anionic cis-dioxidovanadium(V) complexes containing protonated organic bases as counterion: Self-assembly, oligomerization and photoinduced reactivity
作者:Satyabrata Samanta、Kisholoy Bhattacharya、Sanchita Kundu、Raymond J. Butcher、Muktimoy Chaudhury
DOI:10.1016/j.ica.2014.02.008
日期:2014.8
(S-methyl-3-((5-X-2-hydroxyphenyl)methyl)dithiocarbazate, X = H, L = L1; X = NO2, L = L2) react with [VIVO(acac)2] in acetonitrile solution under refluxing condition in the presence of an organic base or ammonium ion (added in moderate excess) as co-ligand to generate cis-dioxidovanadium(V) complexes viz. (NH4)[VVO2L2(H2O)] 1, (gunH)[VVO2L1] 2, (gunH)[VVO2L2] 3 and (cytH)[VVO2L1](cyt) 4 (gun = guanidine and