两个含双磺酸基团化合物的合成、晶体结构及荧光性质

采用缓慢蒸发溶剂法在水中合成了2个含双磺酸基的化合物A-2,5-DSA·（Hphen）₂·2H₂O（1）和[Co（phen）₂（H₂O）₂]·（A-2,5-DSA）·3H₂O（2）（A-2,5-DSA=苯胺-2,5-二磺酸根离子,phen=1,10-邻菲罗啉）。化合物1中,相邻的质子化的1,10-邻菲罗啉反向堆叠在一起,水分子通过氢键与（Hphen）+和苯胺-2,5-二磺酸根离子相连,形成二维的层状结构。配合物2中,钴离子与2个1,10-邻菲罗啉和2个水分子配位,构成[Co（phen）₂（H₂O）₂]²⁺阳离子。3个自由的水分子通过氢键将苯胺-2,5-二磺酸根离子和[Co（phen）₂（H₂O）₂]²⁺连接形成三维网状结构。两个化合物中苯胺-2,5-二磺酸根离子均起到平衡电荷的作用。室温下2个化合物均具有荧光性质,其最大发射峰分别在601nm和441nm。     

单核Zn(Ⅱ)/Ni(Ⅱ)含氮配体配合物的合成、晶体结构及性质

合成了2个新的配合物[Zn(BPP)2(H2O)4](2,6-NDS)·0.5H2O(1)和[Ni(phen)2(H2O)2](A-2,5-DSA)·3H2O(2)(2,6-NDS=2,6-萘二磺酸根,A-2,5-DSA=苯氨-2,5-二磺酸根,BPP=1,3-二(4-吡啶基)丙烷,phen=1,10-邻菲咯啉),用X-射线单晶衍射结构分析方法测定了配合物的晶体结构。配合物1是单核分子,Zn2+离子与2个1,3-二(4-吡啶基)丙烷的2个N原子及4个水分子配位,形成单核配位阳离子。相邻配位阳离子通过配位水分子与氮原子的氢键作用联接成一维双螺旋阳离子链。双螺旋阳离子链与未配位的2,6-萘二磺酸根阴离子通过氢键作用形成二维超分子网。配合物2是单核分子,Ni2+离子与2个1,10-邻菲咯啉分子中的4个N原子及2个水分子配位,形成单核配位阳离子。配位阳离子与游离的水分子及苯氨-2,5-二磺酸根阴离子通过氢键作用构筑成二维超分子网。     

[Ag(4,4′-bpy)]~+及[Zn(phen)_2(H_2O)_2]~(2+)两种配合物的合成、结构与荧光性质

用水热法和溶液法分别合成了2个新的配合物{[Ag(4,4′-bpy)]·3-HSBA.H2O}n(1)和[Zn(phen)2(H2O)2]·(A-2,5-DSA)·3H2O(2)(3-HSBA=3-羧基苯磺酸根,A-2,5-DSA=苯氨-2,5-二磺酸根,4,4′-bpy=4,4′-联吡啶,phen=1,10-邻菲咯啉),用X-射线单晶衍射结构分析方法测定了其晶体结构。配合物1是一维链状结构。在1个不对称单元中包含1个[Ag(4,4′-bpy)]+阳离子,1个3-羧基苯磺酸根阴离子和1个晶格水分子。Ag髣离子与2个4,4′-联吡啶的2个氮原子配位。配合物2是单核结构。在1个不对称单元中包含1个[Zn(phen)2(H2O)2]2+阳离子,1个苯氨-2,5-二磺酸根阴离子和3个晶格水分子。Zn髤离子与2个1,10-邻菲咯啉的4个氮原子和2个水氧原子配位。配合物1和2中,配位阳离子、抗衡阴离子以及晶格水分子之间存在丰富的氢键,进而构筑成超分子网络结构。配合物的荧光均来自于配体的π-π*电子跃迁。     

[Ag(4，4′-bpy)]+及[Zn(phen)2(H2O)2]2+两种配合物的合成、结构与荧光性质

用水热法和溶液法分别合成了2个新的配合物{[Ag(4,4′-bpy)]·3-HSBA.H2O}n(1)和[Zn(phen)2(H2O)2]·(A-2,5-DSA)·3H2O(2)(3-HSBA=3-羧基苯磺酸根,A-2,5-DSA=苯氨-2,5-二磺酸根,4,4′-bpy=4,4′-联吡啶,phen=1,10-邻菲咯啉),用X-射线单晶衍射结构分析方法测定了其晶体结构。配合物1是一维链状结构。在1个不对称单元中包含1个[Ag(4,4′-bpy)]+阳离子,1个3-羧基苯磺酸根阴离子和1个晶格水分子。Ag髣离子与2个4,4′-联吡啶的2个氮原子配位。配合物2是单核结构。在1个不对称单元中包含1个[Zn(phen)2(H2O)2]2+阳离子,1个苯氨-2,5-二磺酸根阴离子和3个晶格水分子。Zn髤离子与2个1,10-邻菲咯啉的4个氮原子和2个水氧原子配位。配合物1和2中,配位阳离子、抗衡阴离子以及晶格水分子之间存在丰富的氢键,进而构筑成超分子网络结构。配合物的荧光均来自于配体的π-π*电子跃迁。     

两个单核镍含氮配体配合物的合成、晶体结构及荧光性质(英文)

采用回流法在水溶剂中合成了2个含氮配体单核镍配合物[Ni(phen)2(H2O)2](1,6-nds)·2H2O(1)和[Ni(phen)3](1,6-nds)·10H2O(2)(1,6-nds=1,6-萘二磺酸根离子,phen=1,10-邻菲罗啉)。配合物1中,镍离子与2个1,10-邻菲罗啉和2个水分子配位,形成[Ni(phen)2(H2O)2]2+阳离子。2个没有配位的水分子通过氢键与[Ni(phen)2(H2O)2]2+和1,6-萘二磺酸根离子相互连接形成二维层状结构。配合物2中,镍离子与3个1,10-邻菲罗啉配位,形成[Ni(phen)3]2+阳离子。大量的氢键将自由的水分子和1,6-萘二磺酸根离子连接形成三维网状结构。2个配合物中1,6-萘二磺酸根离子均没有与镍离子配位,只是起到平衡电荷的作用。室温下,配合物显示了较大的荧光发射峰,其最大发射峰分别在443和438 nm。     

过渡金属离子与3-氟邻苯二甲酸和1,10-邻菲啰啉配合物的合成、结构及性质

过渡金属离子与3-氟邻苯二甲酸(H2Fpht)、1,10-邻菲啰啉(phen)通过水热反应得到了5个配合物:[M(Fpht)(phen)(H2O)3]·H2O(M=Ni 1,Co 2),[Cu(Fpht)(phen)(H2O)]·H2O(3),[M(Fpht)(phen)(H2O)]·H2O(M=Zn 4,Cd 5)。通过X-射线单晶衍射分析、元素分析、红外分析、荧光分析以及差热-热重分析对配合物进行了表征。配合物1和2为单核分子,中心离子Ni(Ⅱ)和Co(Ⅱ)与3-氟邻苯二甲酸根的1个氧原子,1,10-邻菲啰啉的2个氮原子以及3个配位水分子的3个氧原子配位,形成六配位的扭曲八面体构型。配合物3为Z字形一维链状结构。中心Cu(Ⅱ)离子与2个3-氟邻苯二甲酸根的2个氧原子,1个1,10-邻菲啰啉的2个氮原子以及水分子的1个氧原子配位,形成四方锥构型。配合物4和5具有相似的一维螺旋结构,中心Zn(Ⅱ)和Cd(Ⅱ)离子与2个3-氟邻苯二甲酸根的3个氧原子、1,10-邻菲啰啉的2个氮原子以及水分子中的1个氧原子配位,形成扭曲的八面体构型。     

新型单核Ni（Ⅱ）配合物{[Ni（phen）（H2O）4]·（1,5-nds）·H2O}的合成及其晶体结构

以1,5-萘二磺酸钠和1,10-邻菲罗啉为配体,Ni(Ⅱ)为中心离子,采用蒸发溶剂法,在去离子水中合成了一个新型的单核Ni(Ⅱ)配合物{[Ni(phen)(H2O)4]·(1,5-nds)·H2O(1),phen=1,10-邻菲罗啉,1,5-nds=1,5-萘二磺酸根离子},其结构经IR,元素分析和X-射线单晶衍射表征。1属单斜晶系,空间群C2/c,晶胞参数a=20.590 9(18),b=12.435 0(11),c=12.539 0(12),β=124.652(2)°,Z=4,V=2 641.1(4)3。在1的分子结构中,中心离子Ni(Ⅱ)与phen和四个水分子配位,呈八面体构型;1,5-nds没有配位,起平衡电荷作用。     

两个单核镍含氮配体配合物的合成、晶体结构及荧光性质

采用回流法在水溶剂中合成了2个含氮配体单核镍配合物[Ni（phen）₂（H₂O）₂]（1,6-nds）·2H₂O（1）和[Ni（phen）₃]（1,6-nds）·10H₂O（2）（1,6-nds=1,6-萘二磺酸根离子,phen=1,10-邻菲罗啉）。配合物1中,镍离子与2个1,10-邻菲罗啉和2个水分子配位,形成[Ni（phen）₂（H₂O）₂]²⁺阳离子。2个没有配位的水分子通过氢键与[Ni（phen）₂（H₂O）₂]²⁺和1,6-萘二磺酸根离子相互连接形成二维层状结构。配合物2中,镍离子与3个1,10-邻菲罗啉配位,形成[Ni（phen）₃]²⁺阳离子。大量的氢键将自由的水分子和1,6-萘二磺酸根离子连接形成三维网状结构。2个配合物中1,6-萘二磺酸根离子均没有与镍离子配位,只是起到平衡电荷的作用。室温下,配合物显示了较大的荧光发射峰,其最大发射峰分别在443和438nm。     

1，2-环己二羧酸及芳香含氮配体的双核镉、锰配合物的合成和晶体结构

用水热法合成了两种新的配合物[Cd2(e,e-trans-chdc)2(bipy)2(H2O)2].H2O(1)和[Mn2(e,a-cis-chdc)2(phen)2(H2O)2].2H2O(2)(chdc=1,2-环己二羧酸,bipy=2,2′-联吡啶和phen=1,10-邻菲咯啉),用X-射线单晶衍射分析确定了配合物的晶体结构。配合物1和2均为双核分子。配合物1中,2个镉髤离子由2个1,2-环己二羧酸根以e,e-trans配位方式桥联,每个镉髤离子与1个2,2′-联吡啶的2个氮原子、2个1,2-环己二羧酸根的4个氧原子及1个水分子中的氧原子配位,形成了单帽变形三棱柱构型。配合物2中,2个锰髤离子由2个1,2-环己二羧酸根以e,a-cis配位方式桥联,每个锰髤离子与1个1,10-邻菲咯啉的2个氮原子、2个1,2-环己二羧酸根的3个氧原子及1个水分子中的氧原子配位,形成了畸变的八面体构型。配合物1和2分子之间都存在π-π堆积和O-H…O、C-H…O弱作用,进而将双核分子连接成三维超分子网络结构。配合物的荧光均来自于配体的荧光。     

含有二维有序水层的癸二酸锌(Ⅱ)、钴(Ⅱ)超分子配合物的构筑

室温下,在醇水溶液中合成了2个新型配合物,[Zn(phen)3]2·[Zn(C10H16O4)·(H2O)3]·(C10H16O4)2·20H2O(C10H18O4=癸二酸)(1)和[Co(phen)3]2·[Co(H2O)6]·(C10H16O4)3·30H2O(2),并对配合物进行了元素分析分析、红外光谱分析、热重分析以及晶体结构研究.配合物(1)的基本结构单元中含有一个电中性配位单元[Zn(C10H16O4)·(H2O)3]、二个配位阳离子[Zn(phen)3]2+、二个游离的癸二酸根和20个晶格水.Zn原子有两种配位模式,在[Zn(phen)3]2+配位单元中Zn原子与三个邻菲啰啉的六个N原子配位,构成略有畸变的八面体,Zn原子位于八面体的对称中心;在[Zn(C10H16O4)·(H2O)3]配位单元中Zn原子采取五配位的三角双锥构型,两个羧基均采取单齿配位,同一个癸二酸根与相邻的不同Zn原子配位,将相邻的[Zn(C10H16O4)·(H2O)3]配位单元连接起来,自组装得到了无限链状结构.配合物以癸二酸根为模板在ab平面形成了有序水层,该水层由5元,6元水簇,以及其他由羧基参与的各元环组成.与一般常见的6元水簇不同,配合物1中的6元水簇采取了高能量的类似苯环的平面构象.配合物(2)的基本结构单元中含有一个[Co(H2O)6]2+配位阳离子、二个[Co(phen)3]2+配位阳离子、三个游离的癸二酸根和30个晶格水.Co原子也有两种配位模式.在[Co(phen)3]2+配位单元中,Co原子与三个邻菲啰啉的六个N原子配位,构成略有畸变的八面体,Co原子位于八面体的对称中心.在[Co(H2O)6]2+配位单元中Co(II)与6个配位水的氧原子配位,6个配位水中的6个原子和Co(Ⅱ)形成八面体结构.通过水分子之间及水分子和羧基阴离子间的氢键形成了二维有序水层,二维水层中最小的构筑基元为6元环的水,最大的构筑基元为16元环水,每个水环中分别含有6个和16个游离的没有配位的水分子,水分子之间通过很强的氢键作用形成环形的超分子水簇.这些基元片断在二维空间扩展开来,形成二维有序水层.有趣的是,在该水层上通过水分子之间的分子间氢键形成了16元大环水簇,它与两端的六元环共用六条边,每一个16元水环中含有16个游离的没有配位的水分子,水分子之间通过氢键作用形成环形超分子水簇,每个水分子同时作为氢键的给体和受体.[Co(H2O)6]2+和四个羧酸根离子位于十六元环水的中心,与其周围的游离水分子形成了十二个氢键,同时与环外的游离水和羧酸根形成了十个氢键,对大环水聚集体起到稳定作用.     

Hydrothermal syntheses and characterization of cobalt(II) and nickel(II) complexes of 1,3-adamantanedicarboxylic acid and 1,10-phenanthroline

Two coordination complexes, namely [Co(phen)(H₂O)L]·H₂O and [Ni₂(phen)₂(H₂O)₂L₂]·4H₂O (phen = 1,10-phenanthroline, H₂L = 1,3-adamantanedicarboxylic acid) have been hydrothermally synthesized and structurally characterized by single crystal X-ray diffraction. [Co(phen)(H₂O)L]·H₂O consists of 1D chains of the complex plus lattice H₂O molecules. Interchain hydrogen bonds and π–π stacking interactions assemble the 1D chains into 2D layers. [Ni₂(phen)₂(H₂O)₂L₂]·4H₂O is a binuclear complex which is assembled into a 3D supramolecular structure by strong hydrogen bonds and π–π stacking interactions. Both complexes were characterized by physico-chemical and spectroscopic methods.     

Two 3-D supramolecular architecture based on the linkages of Co(II) complexes and lattice water molecules

Two new 3-D supramolecular compounds [Co(phen)(tdc)(H₂O)₃]·5H₂O (1) and [Co(phen)(Htdc)(H₂O)₃]·(Htdc)·2H₂O (2, phen = 1,10-phenanthroline, H₂tdc = thiophene-2,5-dicarboxylate) have been hydrothermally synthesized and structurally characterized. In 1, the neutral [Co(phen)(tdc)(H₂O)₃] complexes behave as pillars to join the water layers to make an overall 3-D supramolecular architecture by H-bond interactions. In 2, similar 2-D water layer is not observed, which could be due to one uncoordinated Htdc ligand instead of three lattice water molecules of 1. The thermal stabilities of 1 and 2 were investigated by thermogravimetric measurements.     

Saccharin complexes of zinc(II) with phenanthroline and 2,9-dimethyl-1,10-phenanthroline: synthesis and characterization

The saccharinato complexes [Zn(phen)₂(sac)(H₂O)]sac (1) and [Zn(sac)(dmp)(H₂O)](sac) (2), where phen = 1,10-phenanthroline, dmp = 2,9-dimethyl-1,10-phenanthroline, and sac =saccharinato ion/ligand, were synthesized by the reaction of [Zn(sac)₂(H₂O)₄] · 2H₂O with ligands and have been characterized by elemental analysis, IR, and ¹H NMR spectroscopies. Conductivity of complexes was measured in DMSO. Compound 1 is characterized by single crystal X-ray diffraction and compared with some isomorphous zinc-saccharinate complexes reported previously. Complex 1 crystallizes in the triclinic system, space group P 1 , with Z = 2, and consists of alternating slightly distorted octahedral [Zn(phen)₂(sac)(H₂O)]⁺ and noncoordinated saccharinate. The zinc bound aqua is hydrogen bonded to an oxygen of carbonyl in the saccharinate ligand and the SO₂ group in the saccharinate counter-ion from an adjacent molecule. Intermolecular and intramolecular hydrogen bonds and C–H ··· O and C–H ··· N short contacts lead to a 3-D network.     

Coexistence of two conformational isomeric chains in a zinc(II) phosphonate induced by π···π stacking interactions

Hydrothermal reaction of zinc acetate with diethyl [(phenylsulfonyl)methyl]phosphonate as well as 1,10-phenanthroline (phen) afforded a novel zinc(II) phosphonate with the formula of [Zn₄(PhSO₂CH₂PO₃)₄(phen)₂(H₂O)₂]·2H₂O. Such compound features two conformational isomeric 1D chains which are regulated by two different π···π stacking interactions. In addition, it exhibits broad blue fluorescent emission band at 387 nm.     

Ternary copper(II) complexes of aroylhydrazones and mono/bidentate heterocycles with different structures: synthesis,crystal structure and properties

Two mixed-ligand Cu(II) complexes, [CuL¹(Himdz] · CH₃OH (1) and [CuL²(phen)] · 0.5DMF (2), with different structures have been synthesized by using substituted aroylhydrazones, 5-bromo-salicylaldehyde-benzoylhydrazone (H₂L¹) and 5-bromo-salicylaldehyde-3,5-dimethoxy-benzoylhydrazone (H₂L²), and mono/bidentate heterocycles, imidazole (Himdz) and 1,10-phenanthroline (phen). Their crystal structures and spectroscopic properties have been studied. X-ray analysis show a distorted square-planar geometry for 1 and a distorted square-pyramidal geometry for 2, in which the chelating phen ligand displays axial-equatorial bonding. In both structures the ONO tridentate ligand occupies the basal plane. Self-assembly via O–H ··· N, N–H ··· O and C–H ··· O interactions lead to one-dimensional chain arrangement in 1 and 2.     

Four anthraquinone-1,5-disulfonate-based metal complexes incorporating N-heterocyclic coligands: synthesis,crystal structures,and fluorescence

Four new anthraquinone-1,5-disulfonate (L)-based metal complexes with N,N-bidentate chelating coligands, {[Pb(phen)₂(L)]?·?4H₂O} _n (1), {[Mn₂(2,2′-bipy)₂(H₂O)₆(L)]?·?L?·?6H₂O} (2), [Co(phen)₂(H₂O)(L)] (3), and [Zn(phen)₂(H₂O)(L)] (4) (phen = 1,10-phenanthroline and 2,2′-bipy?=?2,2′-bipyridine), have been hydrothermally synthesized and were structurally characterized by single-crystal X-ray diffraction, elemental analyses, FT-IR spectra, thermogravimetric curves, and solid luminescence spectra. Structural analysis suggests that 1 is a polymeric 1D zigzag chain bridged by dianionic L. In contrast, the other three complexes have discrete centrosymmetric binuclear structure for 2 and isolated isomorphic mononuclear entities for 3 and 4, which are further assembled into 3D supramolecular networks by abundant hydrogen-bonding and/or π–π stacking interactions. Additionally, 2 and 4 exhibit favorable luminescent emissions, suggesting they are potential candidates for light emission materials.     

Syntheses and crystal structures of two 2D coordination polymers of cobalt(II) and nickel(II) with the Malonate Dianion Ligand

Two 2D complexes, [Co(mal)(phen)(H₂O)₂] (1) and [Ni(mal)(phen)(H₂O)₂] (2) (mal?=?malonate dianion; phen?=?1,10-phenanthroline), have been synthesized by the reaction of Co(ClO₄)₂·6H₂O and Ni(ClO₄)₂·6H₂O with disodium malonate and 1,10-phenanthroline in MeOH/H₂O solution. Their crystal structures have been determined by X-ray diffraction. The structures of Complexes 1 and 2 show that each metal ion is coordinated by one 1,10-phenanthroline, two water molecules and a malonate ligand forming a distorted octahedral environment and each mononuclear fragment forms a 2D supramolecular network through H-bonding interactions.