含未桥连叠氮酸根的单核Cu(Ⅱ)及Co(Ⅲ)配合物的合成和晶体结构

合成了含末桥连叠氮酸根的单核配合物 [Cu(phen) 2 ·(N2 ) ]·NO3 ·2H2 O(1)与 [Co(2 ,2′ -bipy) 2 (N3 ) 2 ]·Cl·2H2 O(2 )。两个晶体都属于三斜晶体 ,空间群为p墿浜衔?(1)的晶胞参数 :a =0 80 4 5 (16 )nm ,b =0 8970 (18)nm ,c =1 70 32 (3)nm ;α =90 95 (3)° ,β =99 94 (3)° ,γ =99 82 (3)°。V =1 1916 (4 )nm3 ,Dc =1 5 72g/cm3 ,Z =2 ,F(0 0 0 ) =5 78,R1=0 4 39,ωR2 =0 10 0 3。在此晶体结构中Cu(Ⅱ )是五配位的四方锥构型。配合物 (2 )的晶胞参数 :a =0 80 95 (16 )nm ,b =1 182 3(2 )nm ,c =1 2 30 6 (2 )nm ;α =91 5 1(3)° ,β =91 88(3)° ,γ =10 6 99(3)°。V =1 12 5 0 (4 )nm3 ,Dc =1 5 5 5g/cm3 ,Z =2 ,F(0 0 0 ) =5 4 0 ,R1=0 0 4 91,ωR2 =0 12 5 5。在此晶体结构中Co(Ⅲ )是六配位的变形八面体构型。     

Syntheses and Crystal Structures of Cobalt(II) and Nickel(II) Coordination Polymers with 3-Aminobenzoic Acid Ligand

1 INTRODUCTION Much research interest has been focused on metal- organic coordination polymers in past years because of the structural and topological novelty of these compounds and their potential applications as func- tional materials, such as catalyst, ion-exchange, gas sorption, optical material and molecule-based ma- gnet[1~6]. In this field, many organic bridging ligands such as bipyridine, polyaromatic carboxylate and re- lated species have been used to produce various types of met…     

双金属化合物[Ni(en)2]3[Fe(CN)6]2·2H2O的变温穆斯堡尔谱研究

合成了一维绳梯链状双金属化合物[Ni(en)2]3[Fe(CN)6]2·2H2O,并对其变温穆斯堡尔谱进行了研究,结果表明该分子磁体中铁的电子态为低自旋Fe3 ,而大的四极分裂值(QS)表明此化合物的[Fe(CN)6]3-单元对称结构发生了形变,低温时出现的磁弛豫谱,给出了在该温度点附近出现铁磁耦合相互作用的信息。     

镧与β-丙氨酸配合物{[La_2(β-ala)_6(H_2O)_4](ClO_4)_6·H_2O}_n的合成及晶体结构

稀土在羊毛染色剂中用做助染剂犤１犦，在钙蛋白中用做钙离子的探针犤２犦得到广泛的应用，稀土的生物效应是以其与各种生物配体如氨基酸、肽、蛋白质、核酸等生物分子的作用为基础的，因此研究稀土氨基酸配合物的单晶结构对于探讨稀土离子与生物体的作用很有意义，稀土与有关α－丙氨酸的摩尔比为１∶１犤３～４犦和１∶２犤５～７犦类型的配合物的单晶结构已有报道，而有关稀土β－丙氨酸配合物的研究还很少犤８犦，特别是关于稀土β－丙氨酸配合物的单晶结构还未见报道，本文合成了高氯酸镧与β－丙氨酸的１∶３型的配合物，并测定了其晶…     

Cu(Ⅱ)与N-(2-羟苄基)-DL-丙氨酸、4,4''''-联吡啶三元配合物的合成与晶体结构

近年来,基于金属和有机配体间的配位键合作用来设计和构筑具有多孔结构的超分子体系已成为现代化学、材料科学领域内非常活跃和充满前景的研究主题之一[1].     

Syntheses and Crystal Structures of Ternary Complexes of Zinc（Ⅱ） and Cadmium（Ⅱ） with 3-Aminobenzoic Acid and 1,10-Phenanthroline

1 INTRODUCTION Benzoic acids with substituent of amino are a class of rigid ligands possessing several functional groups. When they coordinate to metal ions, versa- tile coordination modes will be presented with pre- sence of not only coordinate-covalent bonds but also hydrogen bonds. Besides, diverse coordination modes of carboxyl and rigid frame of benzene ring gua- rantee the stability of multi-dimensional structures of the synthesized metal complexes. Thus ligands of this class are o…     

超分子化合物[M(4，4′-bipy)2(H2O)4·(4，4′-bipy)2·(3，5-diaba)2·8H2O](M=Co，Ni，Cd)的合成及晶体结构

合成了3个超分子化合物[M(4，4′-bipy)₂(H₂O)₄]·(4，4′-bipy)₂·(3，5-diaba)₂·8H₂O(M=Co (1)，Ni (2)，Cd (3)；4，4′-bipy=4，4′-联吡啶；3，5-diaba=3，5-二氨基苯甲酸阴离子)，用红外光谱、元素分析及X-射线单晶衍射进行了表征。3个化合物的晶体都属于单斜晶系，空间群为P2/c。晶体学参数：化合物1：a=0.938 9(2) nm，b=0.775 1(1) nm，c=3.928 4(6) nm，β=90.14(2)°，V= 2.858 80(69) nm³，Z=4，D_c=1.397 g·cm^-3，F(000)=1 266，μ=0.380 mm^-1，R₁=0.034 9,wR₂=0.082 9;化合物2:a=0.938 3(2) nm,b=0.775 3(1) nm，c= 3.921 8(6) nm，β=90.09(1)°，V=2.852 80(68) nm³，Z=2，D_c=1.399 g·cm^-3，F(000)=1 268，μ=0.420 mm^-1，R₁=0.036 6，wR₂=0.080 5；化合物3：a=0.940 91(13) nm，b=0.778 85(11) nm，c=3.971 2(5) nm，β=90.10°，V=2.910 2(7) nm³，Z=2，D_c=1.433 g·cm^-3，F(000)=1 308，μ=0.454 mm^-1，R₁=0.046 8，wR₂=0.096 4。3，5-diaba未参与配位，在配位阳离子[M(4，4′-bipy)₂(H₂O)₄]²⁺中，金属离子M(II)与来自2个4，4′-bipy的2个氮原子和4个水分子的氧原子配位，呈八面体的几何构型。分子中还存在未配位的4，4′-bipy。通过配位阳离子、游离4，4′-bipy及未配位的3，5-diaba间的丰富氢键，构建成具有三维结构的超分子化合物。     

双核配合物[Cu2(L-Asp)(phen)3(NO3)](NO3)·4H2O的合成及晶体结构

The new complex [Cu₂(L-Asp)(phen)₃(NO₃)](NO₃)·4H₂O (L-Asp=L-aspartic acid and phen=1,10-phenanthroline) has been synthesized and its crystal structure has been determined. The complex crystallizes in the monoclinic with space group P2₁/c, The cell parameters are: a=1.261 3(2) nm, b=1.500 8(4) nm, c=2.230 7(4) nm, β=99.55(1)°, and V=4.164 1(16) nm³，D_c=1.587 g·cm^-3. The complex contains two six-coordinated copper ions, and these two copper ions are connected together by L-aspartate to give rise to a binuclear structure. Hydrogen bonds and π-π stacking interactions are observed in the complex. CCDC: 249250.     

Synthesis and Crystal Structure of a New Ternary Complex of Nickel(Ⅱ) with L-Aspartic Acid and 1,10-Phenanthroline

A new ternary complex of nickel(Ⅱ) with L-aspartate (L-Asp) and 1, 10-phenanthroline(Phen), [Ni3(L-Asp)(Phen)5(H2O)3](ClO4)4.4.75H2O, has been synthesized in a mixed solvent of H2OC2H5OH at the pH value of 3. It crystallizes in triclinic, space group P-1 with a =11.861(2), b = 18.384(4), c = 19.746(3)(°A), α = 107.68(1), β = 105.94(1), γ= 103.41(2)°, V =3703.6(11) (°A)3, Mr = 1745.66, Z = 2, Dc =1.565 g/cm3, u = 0.989 mm-1, F(000) = 1791, R = 0.0643and wR = 0.1611. The complex contains two cations, binuclear [Ni2(L-Asp)(Phen)3(H2O)]2+ and mononu- clear [Ni(Phen)2(H2O)2]2+. All the nickel ions in the complex are six-coordinated with a distorted octahedral geometry, but the coordination environments for them are different. There exist hydrogen bonds and π-π stacking interactions in the complex.     

M(Ⅱ)-Fe(Ⅲ)(M=Cu、Co)氰根桥联配合物的穆谱研究

利用穆斯堡尔谱分析合成分子磁体Co[Fe(CN)5NO]·5H2O与[Cu(en)2][KFe(CN)6]·H2O,通过分析超精细相互作用常数来研究其微观结构,研究铁在配合物中价态、价电子排布及同质异能移、四极分裂等超精细相互作用。