作者机构:
[邝代治; 庾江喜; 张复兴; 朱小明; 蒋伍玖; 冯泳兰; 王剑秋] Key Laboratory of Functional Organometallic Materials of College of Hunan Province, Department of Chemistry and Material Science, Hengyang Normal University, Hengyang 421008, China
通讯机构:
[Kuang, D.] K;Key Laboratory of Functional Organometallic Materials of College of Hunan Province, Department of Chemistry and Material Science, Hengyang Normal University, China
摘要:
A novel diorganotin (IV) compound [n-Bu2SnO2CC(O)Ph2]n has been synthesized by dibutyltin oxide with benzilic acid in methanol. It was characterized by IR, elemental analysis and X-ray single crystal diffraction. The crystal belongs to monoclinic system, space group Cc with the cell parameters: a=1.84719(8) nm, b=1.20544(5) nm, c=1.03570(4) nm, β=112.571(3)°, V=2.12953(15) nm3, Z=4, Dc=1.431 g/cm3, μ(MoKa)=1.217 mm-1, F(000)=936, R1=0.0488 and wR2=0.0953. The structural analyses reveal that the compound is a one-dimensional infinite chain coordination polymer, each tin atom is five-coordinated distorted trigonal bipyramidal configuration. Moreover, 3D supramolecular structure of the compound is assembled by intermolecular C-H⋯π interactions between the butyl group and the benzene ring in the adjacent chains.
摘要:
Tricyclohexyltin 4-amino-3-methyl-benzoate (1) and tricyclohexyltin 3,4-dime-thoxybenzoate (2) were synthesized and their crystal structures were determined by X-ray diffraction. Compound 1 belongs to the monoclinic system, space group P2_(1/c) with a = 14.0554(15), b = 11.6947(13), c = 16.2720(17) A,Z = 4, V= 2565.7(5) A~3, D_c = 1.341 g?em~(-3), μ(MoKa) = 1.016 mm~(-1), F(000) = 1080, R= 0.0833 and wR = 0.2964. Compound 2 is of monoclinic system, space group C2Jc with a = 17.8712(6), b = 8.4433(3), c = 35.5783(13) A, Z= 8, V= 5366.8(3) A~3, D_c = 1.360 g?cm~(-3), μ(MoKa) = 0.980 mm-1, F(000) = 2288, R= 0.0549, wR= 0.1279. In compounds 1 and 2, the central Sn atom is coordinated in a tetradentate manner to assume a distorted tetrahedral configuration. Preliminary biological tests showed that these two compounds have strong acaricidal activity.
摘要:
Two dinuclear organotin complexes C_8H_(14)(CO_2SnCy_3)_2 (1) (Cy = cyclohexyl group) and C_8H_(14)[CO_2Sn(CH_2CMe_2Ph)_3]_2 (2) were synthesized by the reactions of camphoric acid with tricyclohexyltin hydroxide and bis[tri(2-methyl-2-phenyl)propyltin] oxide under solvothermal conditions, and these complexes were characterized by infrared spectra, elemental analyses, and H NMR spectra. The crystal of 1 belongs to the monoclinic system, space group P2_1/c with a = 1.83478(19), b = 1.52707(18), c = 1.9849(2) nm,β= 122.515(7)°, Z= 4, V= 4.6896(9) nm~3, D_c = 1.324 g/cm~3, μ(MoKa) = 1.103 mm~(-1), F(000) = 1952,R = 0.0697 and wR= 0.2040. In addition, thermal stability and quantum chemical calculation of 1 were also studied.
摘要:
An organooxotin cluster [(μ-O)(μ-OMe)(L)Sn_2(CH_2Ph)_4]_2 (HL=(MeO)_2C_6H_3CO_2H) has been synthesized by the dealkylation reaction of (PhCH_2)_3SnCl with 3,4-dimethoxybenzoic acid in methanol, and was characterized by UV, IR, elemental analysis and X-ray crystal diffraction. The crystal belongs to triclinic system, space group P1 with the cell parameters: a=1.225 6(5) nm, b=1.229 4(5) nm, c=1.378 0(5) nm, α=69.784(7)°, β=68.568(7)°, γ=72.926(7)°, V=1.7801(12) nm~3, Z=1, D_c=1.549 g·cm~(-3), μ(Mo Kα)=1.447 mm~(-1), F(000)=832, R_1=0.026 1 and wR_2=0.0606. Crystal structure shows a distorted trigonal bipyramidal configuration with five-coordination for the central tin atom, and the complex has a centrosymmetric structure mode with a four-membered central endocyclic Sn_2O_2 unit. Due to the C-H…π interactions between phenyl-H and benzene ring, the adjacent molecules of the complex is linked to generate 1D ribbon structure. A theoretical investigation of one structural unit of the title complex was carried out using Gaussian 03W at LANL2DZ level. The stability and the composition of the frontier molecular orbitals confirmed the coordination geometry of the crystal structure. Thermogravimetric analysis shows that the complex is stable up to 128℃. Moreover, its fluorescence spectra was also investigated. CCDC: 841414.
摘要:
The CuI/triethanolamine catalyst system efficiently promotes the direct hydroxylation of aryl iodides and bromides in water to provide the corresponding phenols in good to excellent yields. Moreover, the procedure avoids the use of toxic organic solvents and tolerates many functional groups.
摘要:
The Schiff base organotin(IV) complex {[4-Et_2NC_6H_3(O)C=NC_6H_3(O)-5-NO_2](n-Bu_2Sn)}_2 has been synthesized via the reaction between 4-(diethylamino) salicylaldehyde-2-amino-4-nitrophenol Schiff base (H_2L) and dibutyltin oxide. Complex C1 has been characterized by IR, ~1H NMR, ~(13)C NMR spectra, and elemental analysis, and its crystal structure was determined by X-ray diffraction. It crystallizes in the monoclinic system, space group P2_(1/n) with a = 15.6559(8), b = 9.1657(5), c = 18.8351(10) A, β = 107.3440(10)°, Z = 4, V = 2579.9(2) A3, D_c = 1.442 Mgm~(-3), μ(MoKa) = 1.025 mm~(-1), F(000) = 1152, R = 0.0250 and wR = 0.0633. The central Sn atom is coordinated in a hexadentate manner to assume a distorted octahedral configuration. Complex C1 was studied by TGA analysis in air atmosphere. The interaction between complex C1 and the herring sperm DNA was realized through the intercalation of the complex based on the studies by EB fluorescent probe.