一维链状3-吡啶甲酸三苄基锡的合成和晶体结构

利用三苄基氯化锡和3-吡啶甲酸在三乙胺存在下以1:1摩尔比反应,合成了一维链状的有机锡配合物3-吡啶甲酸三苄基锡{(C7H7)3Sn(PyCO2H)2Sn(C7H7)3}。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。测试结果表明:该配合物(C27H25- NO2Sn, Mr = 514.17)为单斜晶系,空间群P21/c, a = 10.618(6), b = 14.683(8), c = 16.050(9) ?β= 106.488(9)? Z = 4, V = 2399(2) ?, Dc = 1.423 g/cm3, ?= 1.087 mm-1, F(000) = 1040, R = 0.0266, wR = 0.0629。通过3-吡啶甲酸配体的氮原子桥联, 形成五配位三角双锥构型的链状结构。     

Syntheses, Spectroscopic Properties and Crystal Structures of （2-Cl-C6H4CH2）3SnS2CN（C5H10） and （2-Cl-C6H4CH2）3SnS2CN（C4H9N）

1 INTRODUCTION The chemistry of organotin(IV) complexes was extensively studied due to their biological activity and coordination chemistry[1～7]. More recently, phar- maceutical properties of alkyltin(IV) complexes with dithiocarbamate ligands have bee…     

Synthesis and Crystal Structure of a Novel Ladder-like Organooxotin Cluster from 2,4,6-Trimethylbenzolic Acid and N-Benzylhydroxylamine

~~Synthesis and Crystal Structure of a Novel Ladder-like Organooxotin Cluster from 2,4,6-Trimethylbenzolic Acid and N-Benzylhydroxylamine@张春华$Department of Chemistry and Materials Science,Hengyang Normal University!Hengyang 421008,China @陈满生$Department of Chemistry and Materials Science,Hengyang Normal University!Hengyang 421008,China @李薇$Department of Chemistry and Materials Science,Hengyang Normal University!Hengyang 421008,China @杨颖群$Department of Chemistry an…     

二(对氯苄基)锡双吗啉氨荒酸酯和二(对氯苄基)氯化锡N,N-二乙基氨荒酸酯的合成、表征及晶体结构

利用二(对氯苄基)二氯化锡和吗啉氨荒酸钠、N, N-二乙基氨荒酸钠反应, 合成了二(对氯苄基)锡双吗啉氨荒酸酯C24H28Cl2N2O2S4Sn (Mr = 694.31) 1和二(对氯苄基)氯化锡N, N-二乙基氨荒酸酯C19H22Cl3N2S4Sn (Mr = 553.54) 2。用X-射线单晶衍射测定了这2个化合物的晶体结构, 测试结果表明:化合物1的晶体为单斜晶系, 空间群C2/c, a = 21.998(9), b = 6.469(3), c = 20.204(8) ,β= 94.444(6)o, Z = 4, V = 2866.3(19) 3, Dc = 1.609 g/cm3, m(MoKa) = 1.394 mm-1, F(000) = 1400, S = 0.955, (D/s)max = 0.000, R = 0.0389, wR = 0.0817。化合物2的晶体为单斜晶系, 空间群P21/c, a = 13.088(10), b = 9.304(7), c = 19.593(14) ,β=107.158(10)o, Z = 4, V = 2280(3) 3, Dc = 1.613 g/cm3, m(MoKa) = 1.660 mm-1, F(000) = 1104, S = 1.010, (D/s)max = 0.001, R = 0.0290, wR = 0.0651。在化合物1中, 锡原子呈六配位畸变八面体构型, 化合物2的锡原子则是五配位畸变三角双锥构型。     

Synthesis, Spectroscopic Properties and Crystal Structural Characterization of a Triphenyltin(Ⅳ) Complex with 5-Bromonicotinic Acid

A novel organotin complex [Ph3Sn(C2H5OH)(OCOC5H3NBr)SnPh3(OCOC5H3NBr)]has been synthesized by the reaction of 5-bromonicotinic acid with triphenyltin hydroxide in ethanol and characterized by elemental analysis, IR and 1H NMR. The crystal structure was determined by X-ray single-crystal diffraction. The crystal belongs to the monoclinic system, space group P21/c with a = 15.564(2), b = 24.975(4), c = 12.2973(19) (A), β = 92.224(2)°, Z = 4, V = 4776.5(13) (A)3, Dc = 1.596g/cm3, μ(MoKα) = 2.765 mm-1, F(000) = 2264, R = 0.0385 and wR = 0.0667. In the molecular structure of the title complex, the tin atoms are five-coordinated in a trigonal bipyramidal geometry.     

Syntheses and Structural Characterization of Dimethyltin Complexs of N-（3-Methoxysalicylidene）-α-amino Acid

Three new dimethyltin complexes of N-(3-methoxysalicylidene)-α-amino acid,(CH3)2Sn(3-CH3O-2-OC6H3CH=NCHRCOO)(R = H,1;CH3,2;(CH3)2CH,3),have been synthe-sized by treating dimethyltin dichloride with the potassium salt of the ligand and characterized by elemental analysis,IR and 1H NMR spectra.The crystal structure of [(CH3)2Sn(3-CH3O-2-OC6H3CH=NCH2COO)(CH3OH)]2 H2O(1a),formed from methanol solution of 1,has been deter-mined.The crystal belongs to the monoclinic system,space group C/2c with a = 20.636(3),b = 7.8854(9),c = 20.668(2) ,β= 113.265(2)°,V = 3089.7(6) 3,Z = 4,Dc = 1.707 g/cm3,= 1.675 mm-1,F(000) = 1592,R = 0.0301 and wR = 0.0841.In complex 1a,the tin atom is six-coordinate and possesses a distorted [SnC2NO3] octahedral geometry with the two methyl groups occupying the trans positions.The weak Sn O interactions and intermolecular hydrogen bonds connected the molecules into an infinite chain.     

Synthesis,Spectroscopic Properties and Crystal Structural Characterization of a Triphenyltin(IV) Complex with 5-Bromonicotinic Acid

1 INTRODUCTION Organotin esters of carboxylic acids are widely used as biocides, fungicides and homogeneous ca- talysts in industry[1～3]. Recently, pharmaceutical pro- perties of organotin esters of carboxylic acids have been investigated for their antitumour activity[4, 5]. Studies on organotin compounds containing car- boxylate ligands with additional donor atoms (e.g. N, O or S) that are available for coordination to the tin atom have revealed that new structural types may lead to di…     

Synthesis and Crystal Structure of a Hexameric Organooxotin Cluster from Benzilic Acid

1 INTRODUCTION There is great interest in the study of organotin carboxylic ester compounds due to their consider- able biological activities and structural diversities[1~3]. Since Holmes, R. R.[4] first reported the hexameric drum organotin compound, many organotin carboxy- lic ester compounds with drum-shape have been syn- thesized in recent years[5, 6]. It has been revealed that organotin compounds containing carboxylate ligands with additional donor atoms that are available for coord…     

二(对氯苄基)锡双吗啉氨荒酸酯和二(对氯苄基)氯化锡N,N-二乙基氨荒酸酯的合成、表征及晶体结构

利用二(对氯苄基)二氯化锡和吗啉氨荒酸钠、N,N-二乙基氨荒酸钠反应,合成了二(对氯苄基)锡双吗啉氨荒酸酯C24H28Cl2N2O2S4Sn (Mr = 694.31) 1和二(对氯苄基)氯化锡N,N-二乙基氨荒酸酯C19H22Cl3NS2Sn (Mr = 553.54) 2。用X-射线单晶衍射测定了这2个化合物的晶体结构,测试结果表明:化合物1的晶体为单斜晶系,空间群C2/c, a = 21.998(9), b = 6.469(3), c = 20.204(8) ,β= 94.444(6)o , Z = 4, V = 2866.3(19) 3, Dc = 1.609 g/cm3, μ(MoKα) = 1.394 mm-1, F(000) = 1400,S = 0.955, (?)max = 0.000,R = 0.0389, wR = 0.0817。化合物2的晶体为单斜晶系,空间群P21/c, a = 13.088(10), b = 9.304(7), c = 19.593(14) ,β = 107.158(10)o, Z = 4, V = 2280(3) 3, Dc = 1.613 g/cm3,μ(MoKα) = 1.660 mm-1, F(000) = 1104,S = 1.010, (?)max = 0.001,R = 0.0290, wR = 0.0651。在化合物1中,锡原子呈六配位畸变八面体构型, 化合物2的锡原子则是五配位畸变三角双锥构型。     

鼓形有机锡氧簇合物[nBuSn(O)(NNA)]6的合成、晶体结构及生物活性

The title complex [ⁿBuSn(O)(NNA)]₆(1), was synthesized by the reaction of ⁿBuSn(O)OH with naphthalene acetic acid in 1∶1 molar radio, where HNNA=naphthalene acetic acid. The complex was characterized by IR, ¹H NMR spectra and elemental analysis. The crystal structure was determined by X-ray diffraction method. It crystallizes in monoclinic system with space group P2₁/n. The crystal data are: a=2.647 1(5) nm, b=1.412 9(3) nm, c=2.805 7(6) nm, β=116.185(3)°, Z=4, V=9.417(3) nm³, D_c=1.595 g·cm^-3, μ=1.632 mm^-1, F(000)=4 512, R₁=0.050 3, wR₂=0.131 2. The structure shows a distorted octahedral configuration with six-coordination for the central tin atom. The bioactivity test shows that the Sn(Ⅳ) complex has selective antibacterial property. CCDC: 752497.     

Synthesis and Crystal Structure of a One-dimensional Infinite Chain Organotin Complex [(n-Bu)_3Sn(OCOC_5H_4NO)]_n

1 INTRODUCTION Organotin esters of carboxylic acid are widely used as biocides and fungicides and as homogeneous cata- lysts in industry[1~3]. In recent years, the pharmaceu- tical properties of carboxylic acid have been investi- gated for the antitumour activity[4~6]. In general, bio- cidcal activities of organotin complexes are greatly influenced by the molecular structures and coordina- tion numbers of the tin atom[7, 8]. It is revealed that organotin complexes containing carboxylate l…     

Synthesis and Crystal Structure of the Organotin Complex [(o-Cl-PhCH2)3SnOCOC10H8N]·0.5C6H6

A novel organotin complex [(o-Cl-PhCH2)3SnOCOC10H8N]·0.5C6H6 has been synthesized, and its crystal structure was determined by X-ray diffraction. The crystal belongs to mo- noclinic, space group C2/c with a = 1.6214(5), b = 1.2033(3), c = 3.2873(10) nm, β = 91.467(5)°, V = 6.411(3) nm3, Mr = 1441.26, Z = 4, Dc = 1.493 g/cm3, ц(MoKα) = 10.79 cm－1, F(000) = 2904, R = 0.0500 and Rw = 0.0884. The bond lengths of Sn-C are 0.2150(5), 0.2157(4) and 0.2164(4) nm, and that of Sn-O is 0.2043(3) nm. The tin atom adopts a distorted tetrahedral geometry.     

Synthesis and Crystal Structure of the Organotin Complex [(o-Cl-PhCH_2)_3SnOCOC_(10)H_8N]·0.5C_6H_6

1 INTRODUCTION There is increasing interest in the study of orga-notin carboxylic ester compounds due to their insec-ticidal, fungicidal and antibiotic activities[1, as well 2]as structure diversity. In recent years many organo-tin carboxylic ester compounds with good biologi-cal activity have been synthesized[3, . Previous stu- 4]dies show that the coordination geometry of centralatom Sn …     

氧化-4-吡啶甲酸桥联的一维链状三丁基锡配合物的合成与晶体结构

利用双三丁基氧化锡与氧化-4-吡啶甲酸(HOCOC5H4NO)以物质的量比1∶2反应,合成了有机锡配合物[Bu3Sn(OCOC5H4NO)]n。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射线单晶衍射测定了它的晶体结构。结果表明,该配合物晶体属单斜晶系,空间群为C2/c,晶胞参数a=2.002 8(9)nm,b=1.224 7(6)nm,c=1.913 6(12)nm,β=119.145(6)°,Z=8,V=4.166(4)nm3,Dc=1.365 g.cm-3,μ=1.239 mm-1,F(000)=1 760,R=0.052 9,wR=0.192 1,GOF=1.013。在配合物中锡原子由氧化-4-吡啶甲酸桥联为五配位的畸变的三角双锥构型。氧化-4-吡啶甲酸配体中N-O基团中的氧原子和另一配体中的羧基氧原子与中心锡原子配位,形成无限一维链状有机锡配合物。该配合物具有良好的热稳定性和较高的抗肿瘤活性。     

Crystal Structure and Spectroscopic and Coordination Properties of Bis(4- fluorobenzohydroxamato)dimethyltin(Ⅳ)

An organotin(Ⅳ) complex [(CH3)2Sn(4-FC6H4CONHO)2] has been synthesized and characterized by elemental analysis, IR, 1H NMR and X-ray single-crystal diffraction techni-ques. The crystal belongs to the orthorhombic system, space group Pbca with a = 9.7565(13), b = 17.664(2), c = 20.784(3) A, Z= 8, V= 3581.9(8) A3 Dc = 1.695 g/cm3, μ(MoKα) = 1.469 mm-1, F(000) = 1808, R = 0.0321 and wR = 0.0838. In the molecular structure of the title complex, the tin atoms are five-coordinated in a trigonal bipyramidal geometry, and the special coordination properties of dimethyltin(Ⅳ) with hydroxamate-type ligands are also discussed.     

Crystal Structure and Spectroscopic and Coordination Properties of Bis（4-fluorobenzohydroxamato）dimethyltin（Ⅳ）

An organotin（Ⅳ） complex [（CH3）2Sn（4-FC6H4CONHO）2] has been synthesized and characterized by elemental analysis, IR, ^1H NMR and X-ray single-crystal diffraction techni- ques. The crystal belongs to the orthorhombic system, space group Pbca with a = 9.7565（13）, b = 17.664（2）, c = 20.784（3）A, Z = 8, V = 3581.9（8）A^3 Dc = 1.695 g/cm^3,μ（MoKa） = 1.469 mm^-1, F（000） = 1808, R = 0.0321 and wR = 0.0838. In the molecular structure of the title complex, the tin atoms are five-coordinated in a trigonal bipyramidal geometry, and the special coordination properties of dimethyltin（Ⅳ） with hydroxamate-type ligands are also discussed.     

Synthesis, Spectroscopic Properties and Structural Characterization of Tri（o-chlorobenzyl）tin Ester of 4-Pyridinecarboxylic Acid

The tri(2-chlorobenzyl)tin(IV) complex with 4-pyridinylcarboxylate ligand tri(o-chlorobenzyl)tin ester of 4-pyridinecarboxylic acid has been synthesized by the reaction of tri(2-chlorobenzyl)tin(Ⅳ) chloride with 4-pyridinyl carboxylic acid and characterized by elemental analysis, IR and ^1HNMR, and its crystal structure was determined by X-ray single-crystal diffraction.     

Synthesis and Crystal Structure of Zinc(II) Complex with Isonicotinate Containing a Three-dimensional Hydrogen-bond Network

1 INTRODUCTION Because isonicotinic and nicotinic acids play an important role in the metabolism of all living cells and their metal complexes can also be used as a drug[1]. Much interest has been directed towards the synthesis and structure investigation of these metal complexes[2,3]. With the zinc(II) complex, a trans-octahedral structure [Zn(NIC)2(H_2O)4] (NIC= C6H4NO2), has been ascertained by X-ray analysis[4]. Herein we report the synthesis and crystal structure of the title c…     

七配位二聚体配合物{(PhCH2)2Sn·[2,6-(O2C)2C5H3N](CH3OH)}2的合成及结构

在三乙胺存在下利用三苄基氯化锡和2,6-吡啶二甲酸,以1:1摩尔比反应,合成了七配位二聚体{(PhCH2)2Sn[2,6-(O2C)2C5H3N](CH3OH)}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射线单晶衍射法测定了该化合物的晶体结构.化合物为三斜晶系,P1空间群,晶胞参数a=0.9625(6)nm,b=1.0947(9)nm,c=1.996(3)nm,α=90.00(2)°,β=87.69(3)°,γ=90.00(3)°,Z=2,V=2.102(6)nm3,μ=1.248mm-1,F(000)=1000,R1=0.0476,wR2=0.0782.化合物中2个锡原子呈七配位畸变五角双锥构型.生物活性测试结果表明,该化合物具有较强的体外抗肿瘤活性.     

三(2-甲基-2-苯基丙基)锡(Ⅳ)三氯乙酸酯的合成、结构和生物活性

三氯乙酸与氧化双[三(2-甲基-2-苯基)丙基锡]反应,合成了新配合物三(2-甲基-2-苯基)丙基锡三氯乙酸酯（CCDC:932139）,经元素分析、1H NMR和IR等技术手段表征其组成和结构,通过X射线衍射方法测定了化合物的晶体结构。 该化合物晶体学参数：单斜晶系,空间群为P21/n,晶胞参数：a=1.1186(4) nm,b=1.8366(7) nm,c=1.6020(6) nm,α=90°,β=91.316(7)°,γ=90°,V=3.2902(19) nm3,Z=4,Dc=1.374 g/cm3,μ(MoKα)=1.046 mm-1,F(000)=1392,R1=0.0589,wR2=0.1619;中心锡原子呈四配位畸变四面体构型。 生物活性测试结果表明,标题配合物对5种肿瘤细胞株系HT-29、HepG-2、MCF-7、KB和A549均具有较好的体外抑制活性,并且具有选择性的抑菌活性。