共查询到20条相似文献,搜索用时 78 毫秒
1.
采用水热法合成了一个配合物[Co(AIP)(HAIP)2].(OH)2(HAIP=2-(9-anthryl)-1H-imidazo[4,5-f][1,10]phenanthroline)1,并对其进行了元素分析、红外光谱、热重表征和X射线单晶衍射测定。配合物1属于单斜晶系,空间群为C2/c,晶胞参数为:a=1.152 9(2),b=3.673 6(7),c=1.584 1(3)nm,α=107.73(3)°,V=6.382(2)nm3,Z=4(291(2)K)。在晶体中,中心离子Co(Ⅲ)分别与来自于2个不同的HAIP配体和1个AIP配体上的6个氮原子形成六配位的变形八面体构型。 相似文献
2.
采用水热法合成了一个配合物[Co(AIP)(HAIP)2]·(OH)2(HAIP=2-(9-anthryl)-1H-imidazo[4,5-f][1,10] phenanthroline)1, 并对其进行了元素分析、红外光谱、热重表征和X射线单晶衍射测定。配合物1属于单斜晶系, 空间群为C2/c, 晶胞参数为:a=1.152 9(2), b=3.673 6(7), c=1.584 1(3) nm, α=107.73(3)°, V=6.382(2) nm3, Z=4(291(2) K)。在晶体中, 中心离子Co(Ⅲ)分别与来自于2个不同的HAIP配体和1个AIP 配体上的6个氮原子形成六配位的变形八面体构型。 相似文献
3.
在水热条件下合成了一个金属镉配合物[Cd4(cam)4(phen)4]·4H2O(H2cam=4-羟基吡啶-2,6-二羧酸,phen=1,10-邻菲咯啉),并用元素分析、红外光谱、X-射线单晶衍射、热重分析和荧光分析对其进行了表征。晶体结构表明:该配合物属于单斜晶系,P21/c空间群,晶胞参数为:a=1.42161(10)nm,b=1.94642(13)nm,c=1.43966(10)nm,β=115.3850(10)°。每个CdⅡ离子七配位呈变形五角双锥几何构型,两对CdII离子与4个(cam)2-离子相连形成了环状四核结构。相邻的四核单元通过氢键的识别作用形成二维超分子网;氢键和π…π堆积作用进一步将其扩展为三维超分子结构。 相似文献
4.
采用水热法合成了一种金属-有机配合物[Cd(ipt)(Medpq)]n(H2ipt=isophthalic acid,Medpq=2-methyldipyrido[3,2-f∶2′,3′-h]quinoxaline),并对其进行了元素分析、红外光谱、紫外-可见光谱、热重表征、和X-射线单晶衍射测定。该配合物属于单斜晶系,C2/c空间群。在晶体结构中,Cd髤原子为六配位与来自于间苯二甲酸配体上的4个羧基氧原子,及Medpq配体上的2个氮原子配位,呈现畸变的八面体构型。整个晶体由ipt-Cd-medpq单元组成一维结构。 相似文献
5.
采用水热法合成了一个锰的配合物[Mn(bpydc)(Medpq)]n(1)(H2bpydc=2,2′-联吡啶-4,4′-二甲酸,Medpq=2-甲基吡嗪[3,2-f:2′,3′-h]喹喔啉),并利用元素分析、红外光谱、紫外可见光谱、热分析和X-射线单晶衍射对其结构进行了表征。单晶结构分析表明配合物1属于单斜晶系,Cc空间群,晶胞参数a=2.031 6(4)nm,b=1.564 5(3)nm,c=0.719 26(14)nm,β=103.97(3)°,V=2.218 5(8)nm3,Z=4。配合物1是一个锰(Ⅱ)离子经由bpydc2-连接形成的三维网络结构。配合物1的固体荧光光谱表明它具有很强的荧光性。应用Gaussian 03W程序,在HF/LANL2DZ水平上对标题化合物的自然键轨道(NBO)进行了分析,结果表明Mn(Ⅱ)与配位原子间的价键类型都属于共价键范畴。 相似文献
6.
首次报道了新型高聚合度钨磷多金属氧酸盐超分子化合物H16{[P4W14Na3 (H2O)7O58]2[Na4(H2O)13]2[P4W14Na2(H2O)2O56]}·24H2O的水热合成方法,用元素分析、IR和单晶X射线衍射等手段进行了表征.晶体属三斜晶系,P1空间群,a= 1.551 5(3)nm,b=1.866 4(4)an],c=2.224 9nm,α=105.10(3)°,β=96.74(3)°,γ= 95.23(3)°,V=6.127(2)nm3,Z=1,Mr=12 418.36,Dc=3.365 g·cm-3,μ=19.843 mm-1, F(000)=5 516,R=0.0 829,Rw=0.2 020.测定结果表明,标题化合物是由两个[P4W14Na3 (H2O)7O58]9-和一个[P4W14Na2(H2O)2O56]6-阴离子通过O-Na-O桥键合而成. 相似文献
7.
在水热条件下合成了四个含混合配体4,4’-bipy和2,2’-bipy/phen的多酸配位聚合物[Cu(4,4’-bipy)(2,2’-bipy)2]2[SiW12O40]?4H2O (1),[Ag4(4,4’-bipy)3(2,2’-bipy)2][SiW12O40]?2H2O (2),[Cu(4,4’-bipy)(phen)]2[H3O]2[SiW12O40]?8H2O (3)和[Cu(4,4’-bipy-Cl)(phen)]2[H3O][PW12O40]?H2O (4) (bipy = 联吡啶,phen = 邻菲罗啉),通过红外光谱、热重、元素分析、X-单晶衍射对聚合物进行了表征,在苯乙烯催化环氧化反应中,3和4显示了较高的催化活性,这与结构中存在配位不饱和金属中心有关. 相似文献
8.
以4,5-二羟基苯-1,3-二磺酸钠(Na2H2L)和4,4′-bipy为原料,采用水热法与Co(NO3)2反应合成了新的含氮配体钴配合物[Co(4,4′-bipy)(H2O)4]·H2L·2H2O(1)(H2L2-=4,5-二羟基苯-1,3-二磺酸根离子,4,4′-bipy=4,4′-联吡啶),其结构和组成经X-射线单晶衍射、红外光谱、元素分析和热重分析表征。晶体结构解析表明:钴离子与4,4′-bipy和水分子配位,形成扭曲的八面体配位构型。H2L2-配体没有配位,仅起平衡电荷作用。在结构单元中,[Co(4,4′-bipy)(H2O)4]2+, H2L2-和自由水分子之间通过氢键相连。配合物的荧光发射峰与配体相比发生了蓝移,最大发射峰位于357 nm。 相似文献
9.
具有内孔道的层状超分子化合物[(CuI)2(o-phen)2]的水热合成与晶体结构 总被引:4,自引:0,他引:4
固态金属配位超分子的晶体工程是化学和分子科学最活跃的研究领域之一, 它不仅因存在内孔和隧道等新颖网络特殊性而具有理论研究价值, 而且在催化、光学、主-客体化学以及分子电学等领域中具有巨大的潜在应用价值[1~8]. 用于构筑这类功能化合物的方法主要依赖于构筑网络的相互作用, 即利用分子间的氢键, π-π作用及其它的分子间弱的相互作用. 由于Cu-X体系超分子化合物优异的光学和催化性能, 它们的合成与表征近来已引起人们的极大兴趣[9,10]. 相似文献
10.
采用水热法合成了一个锰的配合物[Mn(bpydc)(Medpq)]n(1)(H2bpydc=2,2’-联吡啶-4,4’-二甲酸,Medpq=2-甲基吡嗪[3,2-f:2’,3’-h]喹喔啉),并利用元素分析、红外光谱、紫外可见光谱、热分析和X-射线单晶衍射对其结构进行了表征。单晶结构分析表明配合物1属于正交晶系,Cc空间群,晶胞参数a=2.0316(4)nm,b=1.5645(3)nm,c=0.71926(14)nm,β=103.97(3),V=2.2185(8)nm3,Z=4。配合物1是一个锰(Ⅱ)离子经由bpydc2-连接形成的三维网络结构。配合物1的固体荧光光谱表明它具有很强的荧光性。应用Gaussian03W程序,在HF/LANL2DZ水平上对标题化合物的自然键轨道(NBO)进行了分析,结果表明Mn(Ⅱ)与配位原子间的价键类型都属于共价键范畴。 相似文献
11.
Two novel metal‐organic coordination polymers [Zn2(PDC)2·H2O]n ( 1 ) and [Zn2La2(OH)(NO3)(PDC)4‐ (H2O)6·2H2O]n ( 2 ) (PDC??pyridine‐2,3‐dicarboxylic acid) have been synthesized by hydrothermal pretreatment and cooling‐down crystallization. X‐ray diffraction analyses reveal that they posses the 3D frameworks. Frame work 1 has been accomplished by using building blocks Zn‐PDC with beautiful undulances. Frame work 2 is a new 3d‐4f heterometallic polymer with a distinctive mono‐ and dinuclear mixed one sinusoidal‐like wave viewed along the b axis. 相似文献
12.
CHEN Wu-Hua HU Zhi-Biao ZHANG Zhu-Sen QIU Ze-Hai ZHOU Yun-Long ZHAO Jin-Hua YUAN Qiu-Lan XIANG Xiao-Yan WANG Xian-Ming 《结构化学》2011,30(8):1178-1182
A novel inorganic-organic compound (C4N2H12)(C2N2H10)2[Mo5P2O23] (1) has been synthesized by the reaction of (NH4)2MoO4, H3PO4, C2N2H8 (ethylenediaminium), C4N2H10·6H2O (piperazine hexahydrate) and water in aqueous solution under mild hydrothermal conditions. Single-crystal X-ray analysis reveals that the title compound is crystallized in the triclinic system, space group P1 with a = 9.258(19), b = 9.382(19), c = 17.681(4), α = 76.28(3), β = 84.48(3), γ = 70.82(3)o, V = 1408.9(6)3, Mr = 1122.04, Z = 2, Dc = 2.645 g/cm3, μ = 2.384 mm-1, F(000) = 1092.0, the final R = 0.0391, wR = 0.1185 and S = 1.006 for 6169 observed reflections with I > 2σ(I). The crystal packing is stabilized by intra- and intermolecular N-H···O hydrogen bonds to form an infinite 3D network. 相似文献
13.
由水热法合成了2个配合物[Co(1,2,4-HBTC)(tib)](1)和[Ni4(1,2,4-BTC)2(tib)4(H2O)2]·(1,2,4-HBTC).9H2O(2)(1,2,4-H3BTC=1,2,4-苯三甲酸,tib=1,3,5-三(1-咪唑基)苯),并用元素分析、红外光谱、X-射线单晶衍射及热重分析等对其进行了表征。晶体结构分析结果表明:配合物1是由Co(Ⅱ)和tib连接形成的二维层状结构,1,2,4-HBTC2-作为端基配体与Co(Ⅱ)配位,而配合物2是通过1,2,4-BTC3-连接[Ni(tib)]2+二维网形成最终的二维多层结构,这2个化合物最终均被氢键连接形成三维超分子结构。 相似文献
14.
用水热法合成了2个化合物[M2(L)(phen)2(H2P)2]·6H2O[M=Ni(1),Zn(2),H4L=4,4'-联吡啶-2,2',6,6'-四羧酸,phen=1,10-邻菲咯啉],并进行了元素分析、IR及X-射线单品结构测定等表征.晶体结构解析结果表明:配合物1和2的晶体都属于三斜晶系,P1空间群.配合物的中心金属离子都是六配位变形的八面体配位构型,配体4,4'-联吡啶-2,2',6,6'-四羧酸的羧基均以单齿形式配位.室温固体荧光测试结果显示配合物2具有较强的荧光. 相似文献
15.
The hydrothermal reactions of Ni(II), 1,2,3‐benzenetricarboxylic acid (1,2,3‐H3btc) and 4,4′‐bipyridine (4,4′‐bpy)/1,2‐bis(4‐pyridyl)ethane (bpa) yield two layered nickel(II) coordination polymers, [Ni2(1,2,3‐btc)(OAc)‐(4,4′‐bpy)2(H2O)]·2H2O ( 1 ) and [Ni(ip)(bpa)] ( 2 ) (ip=isophthalate), respectively. Both complexes are 2‐D coordination network based on 1‐D Ni‐carboxylate chains. The 1,2,3‐btc ligand adopts 3‐bridging mode in complex 1 , but transformed to isophthalate (ip) ligand through decarboxylation in 2 . The formation of the two complexes indicates that hydrothermal conditions andin‐situ ligand reaction have significant effect on constructing coordination polymers. 相似文献
16.
以1,10-邻菲罗啉(phen)为配体,采用溶剂蒸发法在水中分别合成了羟基桥连和氯离子桥连的两个新型的含氮配体多核铜离子配合物[Cu4(phen)4(H2O)2(OH)4·(NO3)4·2H2O(1)和Cu2(phen)2Cl4(2)],其结构经元素分析和X-射线单晶衍射表征。1属三斜晶系,空间群P-1,晶胞参数a=10.143 0(9),b=11.900 1(11),c=12.629 9(13),α=111.060(2)°,β=91.070 0(10)°,γ=110.920(2)°,Z=1,V=1 309.8(2)3,F(000)=692。2属单斜晶系,空间群Cc,晶胞参数a=9.860 9(8),b=17.852 9(13),c=13.412 3(15),β=106.583(11)°,Z=4,V=2 263.0(4)3,F(000)=1 256。用荧光光谱和热分析分别研究了1和2的荧光性质和热稳定性,结果表明:在310 nm激发波长激发下,与phen相比,1和2的荧光发射峰分别发生红移和蓝移,λem分别位于451 nm和374 nm。1和2的初始分解温度分别为298℃和300℃。 相似文献
17.
Xiao‐Ning Zhang Dong‐Sheng Li Prof. Dr. Ji‐Jiang Wang Jun Zhao Cai‐Xia Meng Ya‐Pan Wu Yao‐Yu Wang 《无机化学与普通化学杂志》2009,635(15):2622-2626
Two new compounds, [Ag(Hppdb)]n ( 1 ) and {[Ag2(Hppdb)2(bpe)] · 5.5H2O}n( 2 ) [H2ppdb = [2,3‐f]pyrazino[1,10]phenanthroline‐2,3‐dicarboxylic acid, bpe = trans‐1,2‐bis(4‐pyridyl)ethylene], were synthesized and characterized. In 1 , Hppdb– ions link AgI cations to form an infinite 1D [–Ag–(Hppdb)–Ag–]n chain, furthermore, the dimensionality is extended to 2D layers through synergistic π–π stacking, hydrogen‐bonding and weak Ag ··· O interactions. Correspondingly, the dimeric [(Ag)(Hppdb)]2 subunits in 2 are connected by bpe ligands to generate a loop‐link‐shaped 1D chain motif, which is further joined through a R22(18)C–H ··· O hydrogen‐bonding ring to afford interesting diagonal/diagonal inclined catenation 2D + 2D → 3D supramolecular architectures. In addition, solid‐state properties such as photoluminescence and thermal stability of the two compounds were studied. 相似文献
18.
Syntheses,Structures and Characterization of Four Metal‐Organic Frameworks constructed by 2,2′,6,6′‐Tetramethoxy‐4,4′‐biphenyldicarboxylic Acid 下载免费PDF全文
Four metal‐organic frameworks (MOFs), {[Mn3.5L(OH)(HCOO)4(DMF)] · H2O} ( 1 ), {[In2.5L2O(OH)1.5(H2O)2] · DMF · CH3CN · 2H2O} ( 2 ), {[Pb4L3O(DMA)] · CH3CN} ( 3 ), and {[LaL(NO3)(DMF)2] · 2H2O} ( 4 ) were synthesized by utilizing the ligand 2,2′,6,6′‐tetramethoxy‐4,4′‐biphenyldicarboxylic acid (H2L) via solvothermal methods. All MOFs were characterized by single‐crystal X‐ray diffraction, powder X‐ray diffraction, thermogravimetric analysis, and infrared spectroscopy. In 1 , the Mn2+ ions are interconnected by formic groups in situ produced via DMF decomposition to form a rare 2D macrocyclic plane, which is further linked by L2– to construct the final 3D network. In 2 , 1D zip‐like infinite chain is formed and then interconnected to build the 3D framework. In 3 , a [Pb6(μ4‐O)2(O2C)10(DMA)2] cluster with a centrosymmetric [Pb6(μ4‐O)2]8+ octahedral core is formed in the 3D structure. In 4 , the La3+ ions are connected with each other through carboxylate groups of L2– to generate 1D zigzag chain, which is further linked by L2– to construct a 3D network with sra topology. Solid photoluminescence properties of 3 and 4 were also investigated. 相似文献
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Two new coordination polymers [Co(oba)(mbix)]2n·n H2O(1) and [Mn(Hoba)2(H2O)2]n(2)(H2oba = 4,4'-oxydibenzoic acid, mbix = 1,3-bis(imidazol-1-ylmethyl)benzene) have been successfully synthesized under hydrothermal conditions. Their structures have been determined by elemental analyses, IR spectroscopy, UV and single-crystal X-ray diffraction analysis. The intermolecular hydrogen bonding and π-π stacking interactions extend the complexes into a 3D supramolecular structure. 相似文献