The coordination chemistry of molybdenum and tungsten. Part XIV. Dioxomolybdenum(VI) complexes of bidentate, tridentate, and tetradentate Schiff bases containing oxygen, nitrogen and sulphur donors
bidentate, tridentate, tetradentate Schiff base ligands containing oxygen, nitrogen, and sulphur donor atoms have been complexed to the cis-MoO2 moiety. The structures of the resulting complexes are postulated on the basis of infrared and proton n.m.r. arguments previously developed by Yamada. In the case of the complexes of the tetradentate ligands, the nature of the backbone between the imine groups
Anion tuned magnetic properties of acetato and nitrato-bridged Dy2 complexes
作者:Xiaoyan Zou、Yanping Dong、Fengming Zhang、Guangming Li
DOI:10.1016/j.ica.2017.12.021
日期:2018.3
reveal that two crystallographically equivalent Dy(III) ions in 1 are multi-bridged by four OAc − anions, while two crystallographically non-equivalent Dy(III) ions for 2 are bridged by two NO 3 − anions. Two Dy(III) ions were displaying different coordination geometry for complexes 1 and 2 , which result in the distinct magnetic properties that complex 2 behaves as a singlemoleculemagnet (SMM) with
Synthesis, structure, fluorescent property, and antibacterial activity of new Cd(II) metal complex based on multidentate Schiff base ligand N,N′-Bis(3-methoxysalicylidenimino)-1,3-diaminopropane
rings. The terminal Cd(II) ions are penta-coordinated (2 N, 2O, Cl) in a distorted square pyramidal geometry and central Cd(II) ion attained distorted trigonal prismatic geometry through six oxygen atoms coordination from ligands. Tri-nuclear Cd(II) complex 1 display intraligand (π—π∗) fluorescence in DMSO solution at room temperature. The fluorescence properties of complex 1 as well as the respective
Third‐Order Nonlinear Optical Properties of DA‐salen‐Type Nickel(II) and Copper(II) Complexes
作者:João Tedim、Sónia Patrício、Rosa Bessada、Rui Morais、Carla Sousa、Manuel B. Marques、Cristina Freire
DOI:10.1002/ejic.200600017
日期:2006.9
Third-order nonlinear and linear opticalproperties ofnickel(II) and copper(II) complexes with salen ligands, functionalised with electron donor/acceptor groups (DA-salen), have been investigated in solution by the Z-scan technique using an Nd:YAG laser (λinc = 1064 nm) and UV/Vis spectroscopy. The [M(DA-salen)] complexes exhibit positive nonresonant nonlinear refractive indexes (n2I) in the range27
Synthesis, crystal structure and magnetic properties of two new manganese Schiff base complexes [Mn2(L1)2(NCS)2] and [Mn(L2)(N3)(H2O)] [{L1H=C13H10N2O2}; {L2H2=C19H22N2O4}]
作者:Soma Sen、Samiran Mitra、Dominique Luneau、M. Salah El Fallah、Joan Ribas
DOI:10.1016/j.poly.2006.03.031
日期:2006.10
μ2-dicarboxylato bridged dinuclear manganese(II) Schiff base complex [Mn2(L1)2(NCS)2] (1), L 1 = C 13 H 9 N 2 O 2 - } and a mononuclear manganese(III) Schiff base complex [Mn(L2)(N3)(H2O)] (2), L 2 = C 19 H 20 N 2 O 4 - 2 } have been synthesised and characterised by elemental analysis, IR and UV–Vis spectra (only complex 2). Structures of both the complexes are established by single crystal X-ray analysis. A variable
摘要μ2-二羧基桥连双核锰席夫碱配合物[Mn2(L1)2(NCS)2](1),L 1 = C 13 H 9 N 2 O 2-}和单核锰(III)合成了席夫碱络合物[Mn(L2)(N3)(H2O)](2),L 2 = C 19 H 20 N 2 O 4-2},并通过元素分析,IR和UV-Vis光谱进行了表征(仅复杂2)。通过单晶X射线分析确定两种配合物的结构。对复合物1进行了可变温度磁化率测量研究,结果表明两个锰(II)中心之间的反铁磁相互作用非常弱(J = -0.41±0.02 cm-1)。