Synthesis,Crystal Structure and Photoluminescence of a Three-coordinate Ag(Ⅰ) Complex

A three-coordinate Ag(I) complex, [Ag(Mepzpy)(PAr3)]BF4·H2O(1, Mepzpy = 3-methyl-1-(2-pyridyl)pyrazole, PAr3 = tri(o-tolyl)phosphine), was synthesized from the reaction of Ag(CH3CN)4BF4, PAr3 and Mepzpy in CH3 CN at room temperature. The compound was characterized by UV-vis, NMR and X-ray single-crystal structure analysis. It crystallizes in triclinic space group P1 with a = 10.2251(5), b = 10.6014(5), c = 15.7012(5) , α = 92.963(3), β = 92.641(3), γ = 114.647(4)o, V = 1540.6(1) 3, Z = 2, Mr = 676.24, Dc = 1.458 g/cm3, F(000) = 688, μ = 6.187 mm-1, GOOF = 1.038, the final R = 0.0530 and w R = 0.1493 for 6371 observed reflections with I 2σ(I). Compound 1 is ionic. It is composed of a BF4- anion and a [Ag(Mepzpy)(PAr3)]+ cation. The Ag(I) ion adopts a distorted trigonal pyramidal coordination geometry defined by two nitrogen atoms and a phosphorous atom. The complex emits blue luminescence with maximum peaks at 470 nm in solid state at room temperature.     

[Mo3S7]分子簇和聚合簇合物的振动光谱和电子光谱

本文报道了分立簇「Ｍｏ３Ｓ７（ｄｔｐ）３Ｉ」１及它的四聚物｛「Ｍｏ３ＳＵ（ｄｔｐ）３」４Ｉ｝．｛（ＨｇＩ３）４．Ｋ｝２（ｄｔｐ＝Ｓ２Ｐ（ＯＣ２Ｈ５）＾－２的ＩＲ,Ｒａｍａｎ和ＵＶ－Ｖｉｓ光谱,并讨论分立的「Ｍｏ３Ｓ７（ｄｔｐ）３Ｉ」在四聚后这些光谱的变化。     

Synthesis,Crystal Structure and Luminescent Property of a New Copper(Ⅰ) Iodide Complex Based on 3,5-Dimethyl-4-amino-triazole

The title compound,[Cu4I4(C4H8N4)4],has been synthesized and characterized by single-crystal X-ray diffraction analysis.It crystallizes in monoclinic,space group Pbca,with a=18.1851(10),b=9.3697(5),c=19.8034(10),V=3374.3(3)3,C16H32Cu4I4N16,Mr=1210.34,Z=4,Dc=2.383 g/cm3,μ=6.183 mm-1,F(000)=2272,S=1.032,the final R=0.0309 and wR=0.1180 for 3854 observer reflections(I2σ(I)).The structure of the title compound consists of tetranuclear copper cluster units bridged by the halogen atoms with the 3,5-dimethyl-4-aminotriazole ligands coordinated to the metal ions through the triazole nitrogen atoms.The luminescent property of 1 was also studied.     

系列异金属类立方烷原子簇化合物的振动光谱

通过振动光谱和X 射线结构分析数据的结合 ,归属了系列具有 [M3 YS3 M′](M =Mo ,W ;Y =O ,S ;M′=Cu ,Sn ,Sb ,Pb ,Bi)簇芯的异金属四核类立方烷原子簇化合物的主要振动谱峰。讨论了五种结构类型的光谱特征和成键状态。M′的加入使νM— (μ3—Y) 和νM S 频率下降。当M′为过渡金属 ,例如Cu时 ,Cu与[M3 YS3 ]结合紧密造成了与Cu—S共价键相当的νCu—S振动频率。而当M′为主族金属时 ,νM′—S远小于相应共价键的振动频率值。文中还对νM—M 振动进行若干论述。     

Synthesis,Crystal Structure and Photophysical Property of 2-(9H-carbazol-9-yl)-3-(2-(2,4,5-tri-(9H-carbazol-9-yl)-3,6-dicyanophenoxy)phenoxy) dibenzo[b,e][1,4]dioxine-1,4-dicarbonitrile

A purely organic compound 2-(9 H-carbazol-9-yl)-3-(2-(2,4,5-tri-(9 H-carbazol-9-yl)-3,6-dicyanophenoxy)phenoxy)dibenzo[b,e][1,4]dioxine-1,4-dicarbonitrile, C_(76) H_(40) N_8 O_4, was synthesized and characterized by NMR, UV-Vis, photoluminescenceand X-ray single-crystal structure analysis. The compound crystallizes in monoclinic system, space group P2_1/n with a = 11.6537(3), b = 34.9738(8), c = 15.5053(3) ?, β =101.992(2)°, V = 6181.6(2)?~3, Z = 4, M_r= 1129.18 g/mol, D_c =1.396 g/cm~3, F(000) =2672, μ = 2.239 mm~(–1), GOOF = 1.019, the final R = 0.0577 and wR= 0.1559 for 11925 observed reflections with I 2σ(I). The UV-vis absorption and fluorescence of the compound were discussed. The compound exhibitsyellow-green luminescence with maximum emission peak at 538 nm, and quantum yields of ф = 0.25 and 0.48 in air-equilibrated and degassed toluene at room temperature. Transient decay spectral studies show that compound 1 displays two component decay fashions with a short decay lifetime of 23 ns for the prompt fluoresce anda long decay lifetime of 3.8ms for thermally activated delayed fluorescence. In air-equilibrated toluene, only a short decay lifetime of 17 ns was observed.The experimental and computational results show thatthe emission of the compound originates from the CT excited states.     

A Y(Ⅲ)-organic Coordination Polymer Constructed from 2-(Pyridine-4-yl)-1H-imidazole-4,5-dicarboxylate and Oxalate Ligands: Structure and Luminescent Property

A novel compound, {[Y(HPIDC)(OX)1/2(H2O)]·2H2O}n (1, H3PIDC = 2-(pyridin-4- yl)-1H-imidazole-4,5-dicarboxylic acid, H2OX = oxalic acid), has been synthesized under hydrothermal conditions and characterized by thermal analysis (TGA), powder X-ray diffraction (PXRD), and single-crystal X-ray diffraction. Complex 1 crystallizes in monoclinic space group P21/c with a = 8.342(8), b = 14.61(1), c = 11.487(1), β = 90.78(9)°, V = 1400.4(2)3, Z = 4, C11H11N3O9Y, Mr = 418.14, Dc = 1.983 g/cm3, F(000) = 836, Rint = 0.0509, T = 293(2) K, μ = 4.240 mm-1, the final R = 0.0477 and wR = 0.1125 for 2770 observed reflections with I > 2σ(I). Compound 1 exhibits a 3D framework and generates the 1D open channels filled with free water molecules. The structure of 1 can be rationalized as a diamondoid network when the atom yttrium is regarded as a 4-connected node linking four surrounding yttrium atoms. The luminescent property of compound 1 is also investigated.     

两个新颖的铜-二氮杂菲和钼(磷, 硒)杂多酸组成的有机-无机杂合化合物: 合成和晶体结构

水热法合成了两个新颖的有机-无机杂合化合物{[Cu(o-phen)(H₂O)]₃[Mo₅P₂O₂₃]}•4.5H₂O (1) 和{[Cu(o-phen)- (H₂O)]₂[Mo₅Se₂O₂₁]} (2) (o-phen＝1,10-phenanthroline). 通过红外光谱和单晶X射线衍射分析确定了它们的结构. 结构分析表明两个分子结构中的相邻[Mo₅P₂O₂₃]^6－或[Mo₅Se₂O₂₁]^4－阴离子均由两个桥式的[Cu(o-phen)(H₂O)]单元连接成分别为风车状和双侧桥联状一维聚合链, 化合物1的双金属链又通过若干链间氢键形成层状堆积结构. 讨论了钼杂多酸阴离子和第二种金属-配体亚单元阳离子之间的相互匹配关系.     

系列含二核钼(钨)簇阴离子化合物的合成、结构特征和簇间相互作用

报道了系列共9个以[(M₂O_nS_4-n)(i-mnt)₂]^2- (M=Mo, W; i-mnt=S₂CC(CN)₂^2-; n=0, 1, 2)二核簇为阴离子,以某些有机基团如R₄N (R=烷基),质子化的4,4'-bpy或碱金属Cs, K,二价金属Ni, Mn配合物为阳离子的新化合物的合成,晶体结构,谱学表征和成键特征.这些化合物通过S...S, S...Cl, Cl...Cl超分子相互作用及离子间氢键形成双聚、链状、层状、三维网络及包合物堆积结构.采用扩展的Hückel近似下的紧束缚能带方法计算了部分化合物的能带结构,表明正是这些簇间或离子间的相互作用提供了簇间电荷转移的可能.部分晶体粉末样品的变温电导率测试证实了它们具有半导体导电性能.     

Rational synthesis, structural characterization and the third-order nonlinear optical properties of two new M-Cu-S (M = Mo or W) clusters

By the additional reaction of binuclear compounds (Me4N)2M2S4 (TDT)2 (M = Mo, W; H2TDT= H2CH3C6H3S2) with mononuclear cuprous complex, two new M-Cu-S clusters Mo2Cu2S4(TDT)2-(PPh3 )2·CH3CH2OH (1) and W2Cu2S4(TDT)2(PPh3)2·0.5CH3CH2OH-0.5H2O (2) have been prepared and characterized by IR, UV-Vis, 31P NMR spectroscopy, cyclic voltammetry and single crystal X-ray structure analysis . Both compounds crystallize in space group P 21 / n with lattice parameters a = 1.0956(3), b = 2.2072(3), c = 2.4340(3) nm, β= 100.36(2)°, V= 5.790(3) nm3 and Z = 4 for 1 and a = 1.0965(9),b= 2.2135(3), c = 2.4317(4) nm, β = 99.63(8)°, V= 5.819(8) nm3 and Z = 4 for 2. Both molecular structures contain a cubane-like cluster core [M2Cu2S4] (M = Mo, W) and their skeletons are almost the same except for M atoms. The syntheses, structures and spectrum characterizations of these two clusters are discussed. The third-order nonlinear optical (NLO) property of the two clusters was studied by the technique of forward degenerate four