Solid－state Synthesis at Low－heating Temperature and Crystal Structure of a Dinuclear Molybdenum Complex with Oxalate Ligand［Bu_4N］_2［Mo_2O_2（OH）_2Cl_4（C_2O_4）］

Ｓｏｌｉｄ－ｓｔａｔｅＳｙｎｔｈｅｓｉｓａｔＬｏｗ－ｈｅａｔｉｎｇＴｅｍｐｅｒａｔｕｒｅａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆａＤｉｎｕｃｌｅａｒＭｏｌｙｂｄｅｎｕｍＣｏｍｐｌｅｘｗｉｔｈＯｘａｌａｔｅＬｉｇａｎｄ［Ｂｕ_４Ｎ］_２［Ｍｏ_２Ｏ_２（...     

Dawson结构α-H_6P_2W_(18)O_(62)·3(CH_3)_2NH·H_2O的合成、表征和晶体结构(英文)

由二甲胺与H6P2W18O62·nH2O合成了电荷转移化合物α H6P2W18O62·3(CH3)2NH·H2O.单晶结构解析结果表明晶体属单斜晶系,空间群为P21／c,晶胞参数:a=1.2964(3)nm,b=1.3621(3)nm,c=4.1559(8)nm,β=90.02(3)°,V=7.338(3)nm3,Z=4.标题化合物具有可逆光色性.热分析表明,化合物阴离子在430.5℃左右分解.     

[Ho_2(phen)_4(H_2O)_4(OH)_2](phen)_2(NO_3)_4的合成、晶体结构及磁性

在甲醇与水的混合溶剂中,经浓硝酸硝化的Ho_2O_3与1,10-邻菲啰啉反应形 成氢氧根桥联的双核钬配合物[Ho_2(phen)_4(H_2O)_4(OH)_2] (phen)_2(NO_3)_4 （phen = 1,10-邻菲啰啉）。单晶X射线衍射晶体结构测定表明晶体属三斜晶系, P1-bar (no. 2)空间群,晶胞参数a = 1.1241(1) nm, b = 1.1439(1) nm, c = 1. 4058 (1) nm, α = 93.989(7)°, β = 98.173(7)°, γ = 108.19(1)°, V = 1.6874(4) nm~3, Z = 1, D_c = 1.737 g/cm~3, F(000) = 880,7752个独立衍射 点中,5702个可观测点满足F_o~2 ≥ 2σ (F_o~2),R_1 = 0.0499, wR_2 = 0. 858。标题配合物由中心对称的双核[Ho_2(phen)_4(H_2O)_4-(OH)_2]~(4+)配阳离 子,邻菲啰啉phen分子及硝酸根NO_3~-阴离子组成。敏个稀土原子与2个邻菲啰啉 配体,2相水分子和2个氢氧根配位形成配位数为8的[HoN_4O_4]四方反棱柱。配位 多面体通过两氢氧根基团形成共棱的[Ho_2N_8O_6]双四方反棱柱[d(Ho-N) = 0. 2549～0.2565 nm, d(Ho-O_(H_2O) = 0.2356, 0.2366 nm, d(Ho-O_(OH)) = 0. 2223, 0.2240 nm]。通过氢键和芳环堆积作用,配阳离子和邻菲啰啉分子排列形成 平行于（10 1-bar）的两维层结构,NO_3~-阴离子位于层之间。标题配合物为顺磁 物质,在5 ～300K区间内遵循Curie-Weiss定律X_m (T + 4.43) = 14.72 cm~3·K ·mol~(-1)(X_m为每摩尔Ho~(3+)离子磁化率）,其Ho~(3+)离子的室温有效磁矩为 10.76 B. M.,与Ho~(3+)自由离子的磁矩基本相同,表明稀土离子间不存在磁交换 作用。     

掺锰五磷酸铈、铽晶体的生长及其光谱

用蒸发溶液法从磷酸溶液中首次生长出一系列Ce_xTb_(1-x)P_5O_(14):Mn晶体。它们属于单斜晶系,空间群P2_1/c。计算了晶格常数,用EPR结果确定在晶体中锰离子呈二价。测定了Ce_xTb_(1-x)P_5O_(14):Mn晶体的光谱,说明在晶体中存在着Ce~(3+)到Tb~(3+)和Mn~(2+)的能量转移。Mn~(2+)和Tb~(3+)的发射峰重叠,并使Tb~(3+)的发射峰增强。     

A 3D Supramolecular Framework Based on 1D {[Co（proH）（H2O）3]2[P2Mo5O23]}n Chains and 1D Helical Water Chains

A three-dimensional supramolecular architecture, {[Co（proH）（H2O）3]2[P2Mo5O23]}·7H2O （1, pro = praline）, has been synthesized and characterized by IR, elemental analysis, thermogravimetric analysis, and single-crystal X-ray diffraction. 1 crystallizes in monoclinic, space group C2 with a = 20.600（3）, b = 11.6980（11）, c = 9.2944（10）A, β = 107.837（4）°, V = 2132.1（4） A^3, Z = 2, C10H46Co2Mo5N2O40P2, Mr = 1493.99, Dc = 2.327 g/cm^3, F（000） = 1468, μ（MoKα） = 2.375 mm^-1, the final R = 0.0339 and wR = 0.0844 for 4169 observed reflections with I 〉 2σ（I）. Singlecrystal X-ray crystallographic analysis reveals that the helical water chains and {[Co（proH）- （H2O）3]2[P2Mo5O23]}n chains are perpendicular to each other and extend into an overall three-dimensional supramolecular architecture by hydrogen-bonding interactions. The magnetic investigation indicates weak antiferromagnetic interactions in the compound.     

Synthesis and Crystal Structure of［（n－Bu）_4N］_2［Mo_4O_（10）（OC_（10）H_6O）_2（OCH_3）_2］

ＳｙｎｔｈｅｓｉｓａｎｄＣｒｙｓｔａｌＳｔｒｕｃｔｕｒｅｏｆ［（ｎ－Ｂｕ）_４Ｎ］_２［Ｍｏ_４Ｏ_（１０）（ＯＣ_（１０）Ｈ_６Ｏ）_２（ＯＣＨ_３）_２］￥ＬｕＸｉａｏ－Ｍｉｎｇ；ＺｈｕＨｕｉ－Ｊｕ；ＹａｎｇＮｉｎｇ；ＬｉｕＳｈｕｎ－Ｃｈｅｎｇ；ＪｉｎＸ?..     

Synthesis and Characterization of a New Quaternary Selenide Ba_4Sn_3GeSe_9 Containing [SnGeSe_5]~(4-) and [Sn_2Se_4]~(4-) Units

A new quaternary selenide Ba|_4Sn_3GeSe_9 was synthesized by high temperature solid state reaction method and fully characterized by elemental analysis, UV-vis spectrum, and single-crystal X-ray diffraction. The title compound crystallizes in the orthorhombic space group Pnma with a = 12.463(3), b = 9.308(2) and c = 17.892(5) ?. Ba|_4Sn_3GeSe_9 can be characterized by a zero-dimensional compound composed by special [GeSnSe_5]~(4-) units, [Sn_2Se_4]~(4-) units and the adjacent cations Ba~(2+) ions. The [GeSn Se5]4-unit is composed of a SnSe_3 trigonal pyramid formed by divalent Sn~(2+) and edge-sharing with a GeSe_4 tetrahedron, and the [Sn_2Se_4]-unit is composed of two Sn Se_3 trigonal pyramids. Ba|_4Sn_3GeSe_9 is an indirect semiconductor with a band gap of 1.21 eV.     

Synthesis and Structure of Ru (pap)_2Cl_2 · 4EtOH

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆＲｕ（ｐａｐ）_２Ｃｌ_２·４ＥｔＯＨ￥ＺｈａｏＷｅｉ－Ｊｕｎ；ＺｈａｎｇＳｈｕ－Ｊｉ；ＤｅｎｇＹｉ；ＺｈａｎｇＺｈｅｎｇ－Ｚｈｉ；ＭａＹａｎ－Ｆｅｎｇ；ＨｕａｎｇＷｅｉ－Ｐｉｎｇ；ＷａｎｇＨｏｎｇ－Ｇｅｎ...     

Optical Properties and Thermal Stability of a Cubic Sulfate Rb_2Ca_2(SO_4)_3

In this paper,a non-centrosymmetric compound of Rb_2Ca_2(SO_4)_3 has been synthesized by a high temperature solid-state reaction and high temperature melting method.Single-crystal X-ray diffraction analysis shows that Rb_2Ca_2(SO_4)_3 crystallizes in the cubic space group of P2_13,and its cell parameters are a=b=c=10.5569(6)?,Z=4 and V=1176.55(12)?~3,respectively.In the crystal structure,SO_4 tetrahedra and Ca O_6 octahedra are connected with each other by a corner-sharing mode to construct the three-dimensional framework of Rb_2Ca_2(SO_4)_3.Optical measurements show that the title compound has a short ultraviolet absorption edge and a moderate second-harmonic generation response.The optical origin is illustrated by the electron band structure calculation.In addition,thermal stability is also studied by virtue of differential thermal/thermogravimetric analysis and powder XRD technique.     

新型环形聚阴离子[{WO(H_2O)}_3(AsW_8O31)_3]~21-的结构及表征

在pH=3.0的水溶液中，Na_2WO_4·2H_2O与NaAsO_2·6H_2O和NH_4Cl反应，得 到了新的杂多钨酸盐(MH_4)_19Na_2[{WO(H_2O)}_3(AsW_8O31)_3]·45H_2O单晶， 用X射线单晶衍射法及元素分析确定了其结构，晶体属单斜晶系，空间群C2/c，晶 胞参数为：a=3.1165(11)nm, b=1.7388(7)nm, c=2.2789(9)nm, β=97.342(6)°, V=12.248(8)nm~3, Z=4, R_1=0.0571,wR_2=0.0741[I＞2σ(I)]. 环型聚阴离子 [{WO(H_2O)}_3(AsW_8O31)_3]~21-是由三个{WO(H_2O)}桥连三个新发现的 {AsW_8O31}单元构成的，环聚离子[{WO(H_2O)}_3(AsW_8O31)_3]~21-具有近似D_ (3h)对称性。对该化合物还进行了~183W NMR, IR和TG表征。     

Synthesis,Structure and Electrochemical Property of a Supramolecular Compound（H2en）2[Cu（en）2（H3O）2][Mo8O28]

A supramolecular compound(H2en)2[Cu(en)2(H3O)2][Mo8O28](en=ethylenediamine) was hydrothermally prepared and confirmed by elemental analysis and TG analysis.Single-crystal X-ray analysis reveals that the crystal crystallizes in the triclinic system,space group P1 with a=9.4635(4),b=9.8645(5),c=10.9794(5),α=69.2050(10),β=72.3730(10),γ=78.4510(10)o,Mr=1559.55,V=908.24(7)3,Z=1,Dc=2.851 g/m3,F(000)=749,μ=3.350 mm-1,S=1.000,the final R=0.0217 and wR=0.0567.The compound consists of(H2en)2+,[Mo8O28]8-anion and [Cu(en)2(H3O)2]2+ cations and constructs a 3D supramolecular structure through hydrogen bonds between the nitrogen atoms from en of [Cu(en)2(H3O)2]4+ fragments and the terminal oxygen atoms from the [Mo8O28]8-polyoxoanions.The electrochemical behavior of this compound has been studied in detail based on a solid bulk modified carbon paste electrode of compound(CPE).     

Synthesis and Structure of Propionate－bridged Mixed－metal Cluster Compound：〔MoW_2O_2（O_2CC_2H_5）_6（H_2O）_3〕ZnBr_4·4H_2O

ＳｙｎｔｈｅｓｉｓａｎｄＳｔｒｕｃｔｕｒｅｏｆＰｒｏｐｉｏｎａｔｅ－ｂｒｉｄｇｅｄＭｉｘｅｄ－ｍｅｔａｌＣｌｕｓｔｅｒＣｏｍｐｏｕｎｄ：〔ＭｏＷ_２Ｏ_２（Ｏ_２ＣＣ_２Ｈ_５）_６（Ｈ_２Ｏ）_３〕ＺｎＢｒ_４·４Ｈ_２Ｏ￥ＬｉｕＨｕａｎｇ；ＸｕＬｉ；Ｈｕａ...     

Dawson结构杂多化合物(C_5H_6N)_(4.5)H_(1.5)(P_2W_(18)O_(62))·1.5H_2O的水热合成及晶体结构

用水热合成方法制备了Dawson结构杂多化合物(C5H6N)4.5H1.5(P2W18O62).1.5H2O,通过红外光谱和X射线单晶衍射对其进行了表征.结果表明,该化合物属于单斜晶系,C2/m空间群.a=2.6970(3)nm,b=1.39730(16)nm,c=2.0777(2)nm,β=102.33(0)°,V=7.64927(364)nm3,Z=4,R=0.0412,wR2=0.1016.标题化合物阴离子通过质子化的吡啶分子在氢键作用下形成了一维无限链状结构.     

Synthesis and Crystal Structure of (C_6N_3H_(18))_2Ti_4O_4(C_2O_4)_7·4H_2O

1 INTRODUCTION The open-framework inorganic materials have been synthesized before the early 1980s[1]. Parti- cularly, metal phosphates have been investigated widely during the past few years[2, 3]. In recent years, considerable efforts have been devote…     

咪唑配位的夹心型杂多化合物Na_9[{Na(H_2O)}_3{Co(C_3H_4N_2)}_3(BiW_9O_(33))_2]·33H_2O的合成，结构和磁性质研究

在pH=7.5的水溶液中，咪唑与Na_2WO_4,Bi(NO_3)_3及Co(NO_3)_2反应，得到 了咪唑配位的新型杂多钨酸盐Na_9[{Na(H_2O)}_3{Co(C_3H_4N_2)}_3(BiW_9O_(33) )_2]·33H_2O，用X射线单晶衍射法及元素分析确定了其结构，晶胞参数为：空间 群P3，a=1.3904(4)nm, b=1.3904(4)nm, c=3.3169(13)nm, γ=120 °,V=5.553(3) nm~3, Z=2, R_1=0.0361，wR_2=0.0507(I>2σ)。杂多阴离子[{Na(H_2O)_3}{Co (C_3H_4N_2)}_3(BiW_9O_(33))_2]~(9-)为夹心式结构，两个三空缺Keggin离子α- B-BiW_9O_(33)~(9-)夹层中的中心离子为交替排列的三个Na(H_2O)~+和三个Co (C_3H_4N_2)~(2+)，中心离子钴的配位数为5，该杂多阴离子具有C_(3v)对称性。 对标题化合物进行了磁性质表征，拟合结果为J=6.90cm~(-1),g=2.10,θ=0.25K， 表明该化合物中的Co(II)三核簇存在着铁磁偶合。     

Ge_10O_28单元构建的两个三维锗酸盐结构：（H_3O)_4Ge_7O_16·3H_2O和K_4Ge_9O_20

在半水溶剂热条件下,采用不同的合成条件合成了两个锗酸盐微孔分子筛：（ H_3单晶结构解析表明,两个晶体结构具有相同的"火箭状"二级结构单元（SBU）, SBU的不同的连接方式导致了完全不间结构．H_4Ge_7O_(16)·7H_2O的结晶学数据 为M_r=894 ．27,Pλ=O．071073nm,R（F）=3．48％,wR（F~2）＝8．39％． K_4Ge_9O_(20)的结晶学数据为C=0.7383（2）nm,V=16618（7）nm~3,Z＝4,Mo Ka,R（F）=3．92%,wR(F~2)=11.97%.     

Synthesis and characterization of two quaternary thorium chalcophosphates: Cs4Th2P6S18 and Rb7Th2P6Se21

Two new thorium chalcophosphates have been synthesized by the reactive flux method and characterized by single-crystal X-ray diffraction, diffuse reflectance, and Raman spectroscopy: Cs4Th2P6S18 (I); Rb7Th2P6Se21 (II). Compound I crystallizes as colorless blocks in the triclinic space group P1 (No. 2) with a = 12.303(4) A, b = 12.471(4) A, c = 12.541(4) A, alpha = 114.607(8) degrees, beta = 102.547(6) degrees, gamma = 99.889(7) degrees, and Z = 2. The structure consists of (Th2P6S18)(4-) layers separated by layers of cesium cations and only contains the (P2S6)(4-) building block. Compound II crystallizes as red blocks in the triclinic space group P1 (No. 2) with a = 11.531(3) A, b = 12.359(4) A, c = 16.161(5) A, alpha = 87.289(6) degrees, beta = 75.903(6) degrees, gamma = 88.041(6) degrees, and Z = 2. The structure consists of linear chains of (Th2P6Se21)(7-) separated by rubidium cations. Compound II contains both the (PSe4)(3-) and (P2Se6)(4-) building blocks. Both structures may be derived from two known rare earth structures where a rare earth site is replaced by an alkali or actinide metal to form these novel structures. Optical band gap measurements show that compound I has a band gap of 2.8 eV and compound II has a band gap of 2.0 eV. Solid-state Raman spectroscopy of compound I shows the vibrations expected for the (P2S6)(4-) unit. Raman spectroscopy of compound II shows the vibrations expected for both (PSe4)(3-) and (P2Se6)(4-) units. Our work shows the remarkable diversity of the actinide chalcophosphate system and demonstrates the phase space is still ripe to discover new structures.     

[4,4′-bpyH_2]_5H_2[α-P_2W_(18)O_(62)]_2·4H_2O的合成与结构表征

利用水热方法合成了一种基于双Dawson多阴离子和质子化的4,4′-联吡啶阳离子构筑的化合物[4,4′-bpyH2]5H2[α-P2W18O62]2·4H2O,并经IR光谱、元素分析、热重分析和X射线单晶衍射等测试技术进行了表征.标题化合物属于三斜晶系,P墿空间群,晶胞参数:a=1.35373(5),b=2.24256(13),c=2.73282(11)nm,α=79.890(13),β=77.568(8),γ=80.349(11)°,V=7.9029(6)nm3,Z=2,Dc=4.031g/cm3,GOOF=1.049,R1=0.0674,wR2=0.1434.结构分析结果表明,标题化合物分子由5个质子化的4,4′-联吡啶阳离子、2个H+离子、2个饱和Dawson结构多阴离子[P2W18O62]6-和4个结晶水分子组成.     

硫尿、L-酒石酸根和水为主体晶格的四乙基铵层状包合物的合成及晶体结构

合成了一种新的硫尿-阳离子主体晶格包合物[(C_2H_5)_4N~+]_2C_4H_4O_6~ (2-)·2(NH_2)_2CS·2H_2O，并通过单晶X射线衍射法对其进行了晶体结构测定。 结果表明该晶体属单斜晶系，P2_1空间群，晶胞参数a = 0.7727(2) nm，b = 1. 4707(4) nm，c = 1.4645(4) nm，β = 95.161(5)°，Z = 2，R_1 = 0.0488。晶 体为“三明治”式夹层结构，波形平面主体氢键网状结构由[酒石酸根-硫尿_2]三 聚体形成的双纽带，在两个水分子的桥连氢键连接下形成的。酒石酸根在主体晶格 的氢键形成中起到重要作用。     

一维锯齿状化合物[(en)2(Mo6O20H4)]n的水热合成及晶体结构

利用Na2MoO4·2H2O,MoO3,乙二胺,和H2O通过水热合成法合成了一维锯齿状化合物[(en)2(Mo6O20H4)]n.晶体解析表明,该化合物属于单斜晶系,P21/n空间群,a=0.80680(16)nm,b=1.4371(3)nm,c=0.88874(18)nm,β=97.89(3)°,V=1.0207(4)nm3,Z=2,Dc=3.305Mg·m-3,μ=3.681mm-1,F(000)=960.该化合物结构单元由二个游离的乙二胺分子和一个阴离子Mo6O4-20阴离子中,六20构成.在Mo6O4-个钼原子和八个相邻的氧原子构成两个八员环,在每个八员环的两侧分别存在着一个与三个钼原子相连的桥氧.