NEW COBALT(II) AND NICKEL(II) COMPLEXES WITH 2-(PYRAZOL-1-YLMETHYL)PYRIDINE - STEREOCHEMICAL VARIATIONS IN COBALT(II) COMPLEXES AND X-RAY CRYSTAL STRUCTURE OF BIS[2-(PYRAZOL-1-YLMETHYL) PYRIDINE] DICHLOROCOBALT(II) TETRAHYDRATE

Lal TK.; Mukherjee R.

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NEW COBALT(II) AND NICKEL(II) COMPLEXES WITH 2-(PYRAZOL-1-YLMETHYL)PYRIDINE - STEREOCHEMICAL VARIATIONS IN COBALT(II) COMPLEXES AND X-RAY CRYSTAL STRUCTURE OF BIS[2-(PYRAZOL-1-YLMETHYL) PYRIDINE] DICHLOROCOBALT(II) TETRAHYDRATE

机译：2-（吡唑-1-吡啶基）吡啶的新型钴（II）和镍（II）配合物-BIS [2-（吡唑-1-基乙氧基）吡啶]二水合钴（II）

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Using a non-planar bidentate ligand 2-(pyrazol-1-ylmethyl)pyridine (L-4) a group Of three high-spin cobalt(II) (S= 3/2) and two paramagnetic nickel(II) (S= 1) complexes of compositions [(CoLCl2)-Cl-4] 1, [(ML2Cl2)-Cl-4]. 4H(2)O (M = Co, 2; M =Ni, 4) and [ML34] (ClO4)(2) . H2O (M = CO, 3; M = Ni, 5) have been prepared and their stereochemical properties investigated. Characterizations of the new complexes have been done be elemental analysis, conductivity measurements, solution-state magnetic moment, infrared and absorption spectral data. A representative six-co-ordinate complex of cobalt(II), 2 has been structurally characterized. The pertinent bond lengths (Angstrom) are: Co-Cl, 2.413(4) A; Co-N (pyridine), 2.198(6) Angstrom; Co-N (pyrazole) 2.106(7) Angstrom. Variable-temperature (80-300 K) magnetic susceptibility measurements on solid samples of 2 and 3 confirm their high spin character (S = 3/2). The blue or pink cobalt(II) and light green or violet nickel(II) complexes display ligand field transitions. For 3 and 5, analyses of their d-d transition energies reveal that L-4 is a weak field ligand, comparable to that of L-3 [2,6-bis (3,5-dimethylpyrazol-1-ylmethyl)pyridine]. For cobalt(II) complexes in the solution slate stereochemical interconversions have been neatly demonstrated. (C) 1997 Elsevier Science Ltd. [References: 29]

机译：使用非平面双齿配体2-（吡唑-1-基甲基）吡啶（L-4）组成三个高自旋钴（II）（S = 3/2）和两个顺磁性镍（II）（S = 1）组合物[（CoLCl2）-Cl-4] 1 [[ML2Cl2）-Cl-4]的配合物。 4H（2）O（M = Co，2; M = Ni，4）和[ML34]（ClO4）（2）。制备了H 2 O（M = CO，3; M = Ni，5），并研究了其立体化学性质。通过元素分析，电导率测量，溶液态磁矩，红外光谱和吸收光谱数据对新配合物进行了表征。钴（II）2的代表性六坐标络合物已进行结构表征。相关的键长（埃）为：Co-Cl，2.413（4）A; Co-N（吡啶），2.198（6）埃; Co-N（吡唑）2.106（7）埃。对2和3的固体样品进行可变温度（80-300 K）磁化率测量，证实了它们的高自旋特性（S = 3/2）。蓝色或粉红色的钴（II）和浅绿色或紫色的镍（II）配合物显示出配体场跃迁。对于3和5，对其d-d跃迁能的分析表明，L-4是弱场配体，与L-3 [2,6-双（3,5-二甲基吡唑-1-基甲基）吡啶]相当。对于溶液中的钴（II）配合物，已经很好地证明了立体化学互变。（C）1997 Elsevier Science Ltd. [参考：29]

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《Polyhedron: The International Journal for Inorganic and Organometallic Chemistry》 |1997年第20期|共7页
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Lal TK.; Mukherjee R.;
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正文语种 eng
中图分类化学;无机化学;
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2-(pyrazol-1-ylmethyl)pyridine; Cobalt(ii) and nickel(ii) complexes; Stereochemical variations in cobalt(ii) complexes; Absorption spectral studies; Temperature-dependent magnetism for cobalt(ii) complexes; Crystal structure of a cobalt(ii) complex; Tridentate pyridylpyrazole ligands; Chiral heterocyclic ligands; Nitrogen-donor ligands; Ruthenium(ii) complexes; Coordination-compounds; Molecular-structures; Electrochemistry; Copper(ii); Consequences; Spectroscopy;

机译：2-（吡唑-1-基甲基）吡啶;钴（ii）和镍（ii）配合物;钴（ii）配合物中的立体化学变化;吸收光谱研究;钴（ii）配合物的温度依赖性磁性;晶体的晶体结构钴（ii）配合物;三吡咯基吡唑配体;手性杂环配体;氮供体配体;钌（ii）配合物;配位化合物;分子结构;电化学;铜（ii）;结果;光谱学;

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1. NEW COBALT(II) AND NICKEL(II) COMPLEXES WITH 2-(PYRAZOL-1-YLMETHYL)PYRIDINE - STEREOCHEMICAL VARIATIONS IN COBALT(II) COMPLEXES AND X-RAY CRYSTAL STRUCTURE OF BIS[2-(PYRAZOL-1-YLMETHYL) PYRIDINE] DICHLOROCOBALT(II) TETRAHYDRATE [J] . Lal TK., Mukherjee R. Polyhedron: The International Journal for Inorganic and Organometallic Chemistry . 1997,第20期

机译：2-（吡唑-1-吡啶基）吡啶的新型钴（II）和镍（II）配合物-BIS [2-（吡唑-1-基乙氧基）吡啶]二水合钴（II）
2. PYRAZOLE LIGATION TO COBALT(III) CENTERS - SYNTHESES, STRUCTURES, AND PROPERTIES OF COBALT(III) COMPLEXES OF N,N'-BIS[2-(1-PYRAZOLYL)ETHYL]PYRIDINE-2,6-DICARBOXAMIDE [J] . Chavez FA., Mascharak PK., Olmstead MM. Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics . 1997,第27期

机译：吡唑连接到钴（III）的中心-N，N'-BIS [2-（1-吡唑基）乙基]吡啶-2,6-二甲酰胺的钴（III）配合物的合成，结构和性质
3. Low-spin manganese(II) and cobalt(III) complexes of N-aryl-2-pyridylazophenylamines: new tridentate N,N,N-donors derived from cobalt mediated aromatic ring amination of 2-(phenylazo)pyridine. Crystal structure of a manganese(II) complex [J] . Saha A., Goswami S., Majumdar P. Journal of the Chemical Society, Dalton Transactions. Inorganic Chemistry . 2000,第11期

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4. Metallo-supramolecular Diblock Copolymers based on Heteroleptic Cobalt(III) and Nickel(II) Bis-terpyridine Complexes [C] . Clement Mugemana, Pierre Guillet, Stephanie Hoeppener, American Chemical Society . 2010

机译：基于异钴（III）和镍（II）双萜烯吡啶配合物的金属 - 超分子二嵌段共聚物
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机译：（乙腈-κN）三（吡啶-4-硫酰胺-κN）双（硫氰酸酯-κN）乙腈二溶剂化物和四（吡啶-4-硫酰胺-κN）双（硫氰酸酯-κN）镍（II）的晶体结构戊酸五甲酯
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机译：Fe（BPB）（CN）2 - 作为新型低维杂化空间系统设计的多功能构建块：氰基桥接FeIII-NiII复合物的合成，晶体结构和磁性性能（BPB）2- = 1,2-双（吡啶-2-羧酰胺）苯甲酸酯
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NEW COBALT(II) AND NICKEL(II) COMPLEXES WITH 2-(PYRAZOL-1-YLMETHYL)PYRIDINE - STEREOCHEMICAL VARIATIONS IN COBALT(II) COMPLEXES AND X-RAY CRYSTAL STRUCTURE OF BIS[2-(PYRAZOL-1-YLMETHYL) PYRIDINE] DICHLOROCOBALT(II) TETRAHYDRATE

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