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1.
新型超分子化合物(H3NCH2CH2NH3)2[(HPO4)2Mo5O15]的晶体结构   总被引:6,自引:5,他引:1  
首次通过水热方法合成了新型超分子化合物(H3NCH2CH2NH3)2[(HPO4)2Mo5O15]的晶体结构,并通过X衍射进行了结构表征,晶体学数据为:单斜晶系,C2/c空间群,a=1.766 6(4)nm,b=1.003 4(2)nm,c=1.376 7(3)nm,α=90°,β=96.90(3)°,γ=90°,ν=2.422 7(8)nm3,Z=4,R=0.043 1,wR2=0.128 7.  相似文献   

2.
罗丹明6G合锌(Ⅱ)配合物的合成及晶体结构   总被引:1,自引:1,他引:0  
合成了罗丹明 6G合锌 (Ⅱ )配合物 ,晶体结构分析结果表明配合物组成为 [C2 9H31N2 O2 ) 2 ZnCl4·H2 O] .晶体属三斜晶系 ,空间群P -1 (# 2 ) ,晶胞参数为a =1 .1 687(2 )nm ,b =1 .2 50 1 (5)nm ,c =2 .0 694 (5)nm ;α =99.1 3 (2 )°,β=1 0 0 .1 7(4 )°,γ =96.4 6(4 )°;Z =2 ,ρcal=1 .3 0 g/cm3.研究了配合物的摩尔电导、IR和荧光光谱、差热 -热重分析 .  相似文献   

3.
周为群  陆路德  杨绪杰  曹阳 《化学学报》2004,62(16):1472-1476
合成了未见报道的N ( 2 氟苯甲酰基 ) N′ 4 甲基苯基硫脲 (FBTT) ,并测定了其晶体结构 .晶体属三斜晶系 ,空间群P1— ,a =0 8413 ( 5 )nm ,b =0 95 3 2 ( 5 )nm ,c =0 992 7( 6)nm ,α =66 2 4( 2 )° ,β =85 40 ( 2 )° ,γ =72 2 7( 2 )° ,V =0 693 2 ( 7)nm3 ,Z =2 .利用量子化学密度泛函理论 ,以步长为 3 0°旋转扭角θ[N( 2 )—C( 14 )—N( 1)—H( 12 ) ]得势能曲线 .优化的最稳定的构型与得到的晶体结构一致 .讨论了分子的构型 ,估算了氢键的键能  相似文献   

4.
利用二水氯化铜、2 ,2′ 联吡啶和去甲基斑蝥酸钠合成了桥联配体双核铜配合物 [(bipy) (DCA)Cu (DCA) Cu(bipy) (H2 O) ]·3H2 O(式中bipy为 2 ,2′ 联吡啶 ,DCA为去甲基斑蝥酸根 ) .通过元素分析、红外光谱、紫外 -可见光谱和电导对其结构进行了表征 .用X射线单晶衍射测定了该配合物的晶体结构 .配合物经验分子式为Cu2 C3 6H40 N4O14 ,属三斜晶系 ,空间群P1- ,a =1 12 5 1( 2 )nm ,b =1 2 70 7( 3 )nm ,c =1 73 45 ( 4 )nm ,α =94 86( 3 )° ,β =10 7 61( 3 )° ,γ =112 5 0 ( 3 )° ,V =2 12 64 ( 7)nm3 ,μ =1 0 66mm-1,Z =2 ,Dc=1 3 74g/cm3 ,F( 0 0 0 ) =90 8,R =0 0 5 47,wR2 =0 13 5 5 ,GOF =0 815 .配合物中两个铜原子呈六配位的拉长畸变八面体构型 .生物活性测试结果表明该配合物具有较强的体外抗肿瘤活性  相似文献   

5.
MnAc3.2H2O在pH=4.0的HAc-NaAc缓冲溶液中和邻菲罗啉(phen)反应, 制得了双核锰(Ⅲ)合物[(phen)2Mn2(μ-O)(μ-Ac)2 (H2O)2](ClO4)2.H2O, 并进行了红外光谱表征. X射线单晶衍射表明, 该晶体属单斜晶系, 空间群P21/n, 晶胞参数: a=1.025 28(5) nm, b=1.792 75(9) nm, c=1.984 14(10) nm, β=94.843 0(10)°, V=3.634 0(3) nm3, Z=4, Dc=1.669 g.cm-3. 紫外可见光谱在480 nm处有一个吸收峰. 循环伏安实验说明, 此配合物在乙腈溶液中经历了一个半可逆的一电子氧化还原过程.  相似文献   

6.
利用三苯基氯化锡和对苯二甲酸二钠、哌嗪荒酸二钠在甲醇中反应,合成了双 核有机锡(IV)配合物[Ph_3Sn(CH_3OH)O_2CC_6H_4CO_2(CH_3OH)SnPh_3]· 2CH_3OH和[Ph_3SnS_2CN(CH_2CH_2)_2NCS_2SnPh_3]·2CH_3OH(2)。通过元素分 析、红外光谱和核磁共振氢谱对其结构进行了表征。用X射线单晶衍测定了这两个 化合物的晶体结构。化合物质1为单斜晶系,空间群P2_1/n,a = 1.5199(5) nm, b = 0.9000(3) nm,c = 1.8206(6) nm,β=113.970(5)°,Z = 2,V = 2.2755 (13) nm~3,D_c = 1.413 g/cm~3,μ = 1.146 mm~(-1),F(000) = 980,R_1 = 0.0353,wR_2 = 0.0606。化合物2为单斜晶系,空间群P2_1/c,a = 1.5066(5) nm,b = 1.0875(4) nm,c = 1.3542(5) nm,β=91.614(5)°,Z = 2,V = 2. 2178(14) nm~3,D_c = 1.498 g/cm~3,μ=1.351 mm~(-1),F(000) = 1008,R_1 = 0.0401,wR_2 = 0.1148。在1和2的晶体中,锡原子呈五配位畸变三角双锥构型 。配合物1由未配位的甲醇分子通过氢键作用形成二维网状结构。  相似文献   

7.
利用三苯基氯化锡和对苯二甲酸二钠、哌嗪荒酸二钠在甲醇中反应,合成了双 核有机锡(IV)配合物[Ph_3Sn(CH_3OH)O_2CC_6H_4CO_2(CH_3OH)SnPh_3]· 2CH_3OH和[Ph_3SnS_2CN(CH_2CH_2)_2NCS_2SnPh_3]·2CH_3OH(2)。通过元素分 析、红外光谱和核磁共振氢谱对其结构进行了表征。用X射线单晶衍测定了这两个 化合物的晶体结构。化合物质1为单斜晶系,空间群P2_1/n,a = 1.5199(5) nm, b = 0.9000(3) nm,c = 1.8206(6) nm,β=113.970(5)°,Z = 2,V = 2.2755 (13) nm~3,D_c = 1.413 g/cm~3,μ = 1.146 mm~(-1),F(000) = 980,R_1 = 0.0353,wR_2 = 0.0606。化合物2为单斜晶系,空间群P2_1/c,a = 1.5066(5) nm,b = 1.0875(4) nm,c = 1.3542(5) nm,β=91.614(5)°,Z = 2,V = 2. 2178(14) nm~3,D_c = 1.498 g/cm~3,μ=1.351 mm~(-1),F(000) = 1008,R_1 = 0.0401,wR_2 = 0.1148。在1和2的晶体中,锡原子呈五配位畸变三角双锥构型 。配合物1由未配位的甲醇分子通过氢键作用形成二维网状结构。  相似文献   

8.
利用三苄基氧化锡与 2 吡咯甲酸反应 ,合成六聚体一苄基锡氧 2 吡咯甲酸酯簇合物 .通过元素分析、红外光谱、核磁共振氢谱和X射线单晶衍射对其结构进行了表征 .X射线单晶衍射测试结果表明 :化合物为三斜晶系 ,空间群P 1,a =1 2 64 4( 3 )nm ,b =1 7416( 4 )nm ,c =1 92 85 ( 4 )nm ,α =90 0 2 1( 4 )° ,β =94 5 85 ( 4 )° ,γ =90 0 2 1( 4 )° ,Z =2 ,V =4 2 3 3 0( 16)nm3 ,Dc=1 715g/cm3 ,μ =1 93 6mm-1,F( 0 0 0 ) =2 13 6,R =0 0 5 2 7,wR =0 0 70 8.该化合物为鼓型簇状结构 ,锡原子为畸变的八面体构型 .  相似文献   

9.
在水热条件下合成了一种新型超分子化合物,通过元素分析、红外光谱、热重分析和X射线单晶衍射方法确定了其晶体结构.结构分析表明该晶体属于单斜晶系,C2/m空间群,晶胞参数a = 1.264 3(3) nm, b = 2.106 9(4) nm, c = 1.005 7(2) nm, α = 90°, β = 110.16(3)°, γ = 90°, V = 2.514 9(9) nm3, Z = 2, R1 = 0.061 8, wR2 = 0.179 4.  相似文献   

10.
任颜卫  李珺  吴爱芝  李淑妮  张逢星 《化学学报》2005,63(10):919-923,i003
在乙腈溶液中,由混合价三核锰配合物[Mn3O(ClCH2COO)6(py)2]?(H2O)(py为吡啶)与2,2′-联吡啶(bipy)反应合成了混合价(Mn3IIIMnII)四核锰配合物[Mn4O2(ClCH2COO)7(bipy)2]?H2O.采用元素分析、红外光谱、热分析和X射线单晶衍射法确定了其组成和结构.标题化合物晶体属于三斜晶系,空间群P-1,晶胞参数:a=0.89854(13)nm,b=1.4027(2)nm,c=1.9037(3)nm,α=93.518(3)°,β=96.736(3)°,γ=94.875(3)°,V=2.3680(6)nm3,Z=2,Dc=1.734g/cm3,F(000)=1238,GOF=1.036,R1=0.0592,wR2=0.1162[I>2σ(I)].在标题化合物中,配位结构单元中心为一蝶型[Mn4(μ3-O)2]7+多核簇,含有2个Mn3(μ3-O)单元,具有近似C2对称轴.4个Mn离子均为六配位,外围配体为7个氯乙酸根和2个2,2′-联吡啶,处于变形的八面体环境.变温磁化率研究表明标题化合物在整体上表现为反铁磁性耦合作用,但在低温下的磁相互作用较为复杂.  相似文献   

11.
12.
The dehydrocoupling of the sterically hindered phosphine-borane adduct tBu(2)PH.BH(3) above 140 degrees C is catalyzed by the rhodium complexes [Rh(1,5-cod)(2)][OTf] or Rh(6)(CO)(16) to give the four-membered chain tBu(2)PH-BH(2)-tBu(2)P-BH(3) (1), which was isolated in 60% yield and characterized by multinuclear NMR spectroscopy, mass spectrometry, and elemental analysis. Thermolysis of 1 in the temperature range 175-180 degrees C led to partial decomposition and the formation of tBu(2)PH.BH(3). When the dehydrocoupling of tBu(2)PH.BH(3) was performed in the presence of [[Rh(mu-Cl)(1,5-cod)](2)] or RhCl(3) hydrate, the chlorinated compound tBu(2)PH-BH(2)-tBu(2)P-BH(2)Cl (2) was formed which could not be obtained free of 1. The molecular structures of tBu(2)PH.BH(3), tBu(2)PH-BH(2)-tBu(2)P-BH(3) (1), and tBu(2)PH-BH(2)-tBu(2)P-BH(2)Cl (2) together with 1 were determined by single-crystal X-ray diffraction studies.  相似文献   

13.
Huang FQ  Ibers JA 《Inorganic chemistry》2001,40(11):2602-2607
The new compounds K(2)TiCu(2)S(4), Rb(2)TiCu(2)S(4), Rb(2)TiAg(2)S(4), Cs(2)TiAg(2)S(4), and Cs(2)TiCu(2)Se(4) have been synthesized by the reactions of A(2)Q(3) (A = K, Rb, Cs; Q = S, Se) with Ti, M (M = Cu or Ag), and Q at 823 K. The compounds Rb(2)TiCu(2)S(4), Cs(2)TiAg(2)S(4), and Cs(2)TiCu(2)Se(4) are isostructural. They crystallize with two formula units in space group P4(2)/mcm of the tetragonal system in cells of dimensions a = 5.6046(4) A, c = 13.154(1) A for Rb(2)TiCu(2)S(4), a =6.024(1) A, c = 13.566(4) A for Cs(2)TiAg(2)S(4), and a =5.852(2) A, c =14.234(5) A for Cs(2)TiCu(2)Se(4) at 153 K. Their structure is closely related to that of Cs(2)ZrAg(2)Te(4) and comprises [TiM(2)Q(4)(2)(-)] layers, which are separated by alkali metal atoms. The [TiM(2)Q(4)(2)(-)] layer is anti-fluorite-like with both Ti and M atoms tetrahedrally coordinated to Q atoms. Tetrahedral coordination of Ti(4+) is rare in the solid state. On the basis of unit cell and space group determinations, the compounds K(2)TiCu(2)S(4) and Rb(2)TiAg(2)S(4) are isostructural with the above compounds. The band gaps of K(2)TiCu(2)S(4), Rb(2)TiCu(2)S(4), Rb(2)TiAg(2)S(4), and Cs(2)TiAg(2)S(4) are 2.04, 2.19, 2.33, and 2.44 eV, respectively, as derived from optical measurements. From band-structure calculations, the optical absorption for an A(2)TiM(2)Q(4) compound is assigned to a transition from an M d and Q p valence band (HOMO) to a Ti 3d conduction band.  相似文献   

14.
The nucleophilicity of the [Pt(2)S(2)] core in [[Ph(2)P(CH(2))(n)PPh(2)]Pt(mu-S)(2)Pt[Ph(2)P(CH(2))(n)PPh(2)]] (n = 3, dppp (1); n = 2, dppe (2)) metalloligands toward the CH(2)Cl(2) solvent has been thoroughly studied. Complex 1, which has been obtained and characterized by X-ray diffraction, is structurally related to 2 and consists of dinuclear molecules with a hinged [Pt(2)S(2)] central ring. The reaction of 1 and 2 with CH(2)Cl(2) has been followed by means of (31)P, (1)H, and (13)C NMR, electrospray ionization mass spectrometry, and X-ray data. Although both reactions proceed at different rates, the first steps are common and lead to a mixture of the corresponding mononuclear complexes [Pt[Ph(2)P(CH(2))(n)PPh(2)](S(2)CH(2))], n = 3 (7), 2 (8), and [Pt[Ph(2)P(CH(2))(n)PPh(2)]Cl(2)], n = 3 (9), 2 (10). Theoretical calculations give support to the proposed pathway for the disintegration process of the [Pt(2)S(2)] ring. Only in the case of 1, the reaction proceeds further yielding [Pt(2)(dppp)(2)[mu-(SCH(2)SCH(2)S)-S,S']]Cl(2) (11). To confirm the sequence of the reactions leading from 1 and 2 to the final products 9 and 11 or 8 and 10, respectively, complexes 7, 8, and 11 have been synthesized and structurally characterized. Additional experiments have allowed elucidation of the reaction mechanism involved from 7 to 11, and thus, the origin of the CH(2) groups that participate in the expansion of the (SCH(2)S)(2-) ligand in 7 to afford the bridging (SCH(2)SCH(2)S)(2-) ligand in 11 has been established. The X-ray structure of 11 is totally unprecedented and consists of a hinged [(dppp)Pt(mu-S)(2)Pt(dppp)] core capped by a CH(2)SCH(2) fragment.  相似文献   

15.
The synthesis, structural characterization, spectroscopic, and electrochemical properties of N(2)S(2)-ligated Ni(II) complexes, (N,N'-bis(2-mercaptoethyl)-1,5-diazacyclooctane)nickel(II), (bme-daco)Ni(II), and (N,N'-bis(2-mercapto-2-methylpropane)1,5-diazacyclooctane)nickel(II), (bme-daco)Ni(II), derivatized at S with alcohol-containing alkyl functionalities, are described. Reaction of (bme-daco)Ni(II) with 2-iodoethanol afforded isomers, (N,N'-bis(5-hydroxy-3-thiapentyl)-1,5-diazacyclooctane-O,N,N',S,S')halonickel(II) iodide (halo = chloro or iodo), 1, and (N,N'-bis(5-hydroxy-3-thiapentyl)-1,5-diazacyclooctane-N,N',S,S')nickel(II) iodide, 2, which differ in the utilization of binding sites in a potentially hexadentate N(2)S(2)O(2) ligand. Blue complex 1 contains nickel in an octahedral environment of N(2)S(2)OX donors; X is best modeled as Cl. It crystallizes in the monoclinic space group P2(1)/n with a = 12.580(6) ?, b = 12.291(6) ?, c = 13.090(7) ?, beta = 97.36(4) degrees, and Z = 4. In contrast, red complex 2 binds only the N(2)S(2) donor set forming a square planar nickel complex, leaving both -CH(2)CH(2)OH arms dangling; the iodide ions serve strictly as counterions. 2 crystallizes in the orthorhombic space group Pca2(1) with a = 15.822(2) ?, b = 13.171(2) ?, c = 10.0390(10) ?, and Z = 4. Reaction of (bme-daco)Ni(II) with 1,3-dibromo-2-propanol affords another octahedral Ni species with a N(2)S(2)OBr donor set, ((5-hydroxy-3,7-dithianonadiyl)-1,5-diazacyclooctane-O,N,N',S,S')bromonickel(II) bromide, 3. Complex 3 crystallizes in the orthorhombic space group Pca2(1) with a = 15.202(5) ?, b = 7.735(2) ?, c = 15.443(4) ?, and Z = 4. Complex 4.2CH(3)CN was synthesized from the reaction of (bme-daco)Ni(II) with 1,3-dibromo-2-propanol. It crystallizes in the monoclinic space group P2/c with a = 20.348(5) ?, b = 6.5120(1) ?, c = 20.548(5) ?, and Z = 4.  相似文献   

16.
In the title compound, (2-chloro­benzyl)­tris­(pyridine-2-thiol­ato)-κ2N,S2N,SS-tin(IV), [Sn(C7H6Cl)(C5H4NS)3], two of the three pyridine-2-thiol­ato ligands (SPy) are bidentate and one is monodentate. The bonding C atom of the 2-chloro­benzyl group, the S atom of the monodentate SPy and the S and N atoms of the two bidentate SPy ligands form a distorted octahedron around the Sn atom. The three S atoms and the N atom of one of the bidentate SPy ligands occupy the equatorial positions, while the N atom of the second bidentate SPy ligand and the C(CH2) atom are axial. The axial N—Sn—C angle of 157.9 (1)° demonstrates the heavy distortion of the octahedron.  相似文献   

17.
1 INTRODUCTION The picolinic acid (picH), also called pyridine- 2-carboxylic acid, has a broad spectrum of physio- logical effects on the activity functions of both ani- mal and plant organisms. It is attributed increasing interest due to its ability to …  相似文献   

18.
Two new transition metal(II) complexes [M(hdpa)2(N(CN)2)2] (M = Mn ( 1 ), Co ( 2 ); hdpa = 2, 2'‐dipyridylamine) have been prepared and characterized structurally and magnetically. Both compounds crystallize in the monoclinic space group C2/c. 1 and 2 are isotypic with the unit cell parameters a = 8.634(9), b = 13.541(14), c = 21.99(2) Å, β = 94.806(18)°, and V = 2562(5) Å3 for 1 , a = 8.617(3) Å, b = 13.629(5)Å, c = 21.598(8)Å, β = 94.593(6)°, and V = 2528.4(15)Å3 for 2 , and Z = 4 for both. According to X‐ray crystallographic studies, each metal(II) ion was six‐coordinated with four nitrogen atoms from two bidentate hdpa ligand and two nitrogen atoms from two N(CN) anions to form slightly distorted octahedrons. Adjacent complex molecules are connected by hydrogen bonds or π···π interactions to form three‐dimensional network. The IR and UV spectroscopy were measured and the magnetic behaviors were investigated.  相似文献   

19.
20.
Reaction of the N-(2-pyridyl)carbonylaniline ligand (L) with Cu(NO3)2, Cu(ClO4)2, Zn(ClO4)2, Ni(NO3)2 and PdCl2 gives complexes with stoichiometry [Cu(L)2(H2O)2](NO3)2, [Cu(L)2(H2O)2](ClO4)2, [Zn(L)2(H2O)2] (ClO4)2, [Ni(L)2(H2O)Cl](NO3) and PdLCl2. The new complexes were characterized by elemental analyses and infrared spectra. The crystal structures of [Cu(L)2(H2O)2](NO3)2, [Cu(L)2(H2O)2](ClO4)2, and [Zn(L)2(H2O)2](ClO4)2 were determined by X-ray crystallography. The cation complexes [M(L)2(H2O)2] contain copper(II) and zinc(II) with distorted octahedral geometry with two N-(2-pyridyl)carbonylaniline (L) ligands occupying the equatorial sites. The hexa-coordinated metal atoms are bonded to two pyridinic nitrogens, two carbonyl oxygens and two water molecules occupying the axial sites. Both the coordinated water molecules and uncoordinated amide NH groups of the N-(2-pyridyl)carbonylaniline (L) ligands are involved in hydrogen bonding, resulting in infinite hydrogen-bonded chains running in one and two-dimensions.  相似文献   

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