共查询到20条相似文献,搜索用时 31 毫秒
1.
《Journal of Coordination Chemistry》2012,65(6):994-1003
A new dipicolinate complex of Ru(II), cis-[Ru(phen)2dipic]?·?9.5H2O (1), where dipic is dipicolinate or pyridine-2,6-dicarboxylate and phen is 1,10-phenanthroline, has been synthesized and characterized by elemental analysis, spectroscopic (IR, UV-Vis), cyclic voltammetry, and single-crystal X-ray diffraction. ORTEP drawing of cis-[Ru(phen)2dipic]?·?9.5H2O shows that the coordination geometry around Ru(II) is a distorted octahedron. It crystallizes in the triclinic system, with space group P 1, a?=?10.4633(2)?Å, b?=?13.6332(4)?Å, c?=?13.6637(4)?Å, α?=?67.516(3)°, β?=?69.757(2)°, γ?=?77.201(2)°, V?=?1680.74(8)?Å3, Z?=?2, and R int?=?0.0311. In 1, two phen are bidentate N,N′ ligands. The Ru(II) in 1 is bonded to dipicolinate through pyridine nitrogen and one oxygen of carboxylate groups, thus pyridine-2,6-dicarboxylate is a bidentate N,O ligand. Efficient and selective oxidation of alcohols with NaIO4 as oxidant was conducted by this complex catalyst in CH3OH/H2O as solvents under air at room temperature. 相似文献
2.
《Journal of Coordination Chemistry》2012,65(10):817-823
A novel path to lanthanide complexes of aromatic carboxylates controlled by the hydrolysis of the corresponding aromatic carboxylate ester has been discovered. A dimeric samarium complex of pyridine-3-carboxylate (NIC) has been obtained using methyl pyridine-3-carboxylate (MNIC) as the starting ligand. With the hydrolysis of MNIC to NIC in the presence of sodium hydroxide, samarium ions coordinate to HNIC to form [Sm(NIC)3(H2O)2]2. X-ray analysis reveals the dimeric structure formed through bridging oxygen atoms of carboxylate groups. The complex crystallizes in the monoclinic space group P21/c with a?=?9.668(3), b?=?11.807(3), c?=?17.512(5)?Å, β?=?92.361(3)°, V?=?1997.3(10)?Å3, D c?=?1.838?Mg?m?3, Z?=?2, R 1?=?0.0225. The complex exhibits strong luminescence. 相似文献
3.
《Journal of Coordination Chemistry》2012,65(5):920-930
A new cobalt(II) complex, [Co(C3H4N2)(C8H8O5)(H2O)2]·2H2O, of demethylcantharate(7-oxabicyclo[2,2,1]heptane-2,3-dicarboxylate, C8H8O5) with imidazole has been synthesized from cobalt chloride, demethylcantharidin (NCTD) and imidazole. The complex was characterized by elemental analysis, IR, and X-ray single crystal diffraction. The complex crystallized in the monoclinic crystal system and P21/m space group with a?=?0.634790(10)?nm, b?=?0.963030(10)?nm, c?=?1.221770(10)?nm, α?=?90°, β?=?95.9700(10)°, γ?=?90°, V?=?0.742844(15)?nm3, Mr ?=?383.22, Dc ?=?1.713?g?cm?3, Z?=?2, F(0?0?0)?=?398, μ?=?1.206?mm?1, the final R?=?0.0291, and wR?=?0.0837 [I?>?2σ(I?)]. The interaction of the complex with deoxyribonucleic acid (DNA) was studied by electronic absorption spectra, fluorescence spectra, and viscosity measurements, which indicate that the complex binds to calf thymus DNA through a partially intercalative mode. The binding constant K b for the complex was 2.62?×?104?L?mol?1. The antiproliferation activity test showed that the complex has high antiproliferative ability against human hepatoma cells SMMC7721 (with IC50 being 42.8?±?0.9?µmol?L?1) and human lung cancer cells A549 (with IC50 being 65.1?±?3.2?µmol?L?1). The inhibition rates of the complex are much higher than those of NCTD. 相似文献
4.
《Journal of Coordination Chemistry》2012,65(4):499-507
A linear-chain one-dimension polymeric complex of Co(II), [[Co(TMA)2(4,4′-bipyridine)2]?·?H2O] n has been synthesized and characterized. The complex crystallizes in the monoclinic system, space group P2(1)/c with a?=?11.344(3)?Å, b?=?15.880(4)?Å, c?=?23.436(5)?Å, β?=?117.831(10)°, V?=?3733.5(16)?Å3 and D c?=?1.437?g?cm?3. The effective magnetic moment for this complex indicates that there is almost no ferromagnetic coupling between the Co(II) ions and the magnetic behavior is due to the isolated Co(II). 相似文献
5.
《Journal of Coordination Chemistry》2012,65(2):270-276
A 1?:?1 chelate complex [(C6H5)3PC(COCH3)(COC6H5)-κO,O′]UO2(NO3)2 has been synthesized by reaction of (C6H5)3PC(COCH3)(COC6H5) with UO2(NO3)2?·?6H2O in methanol at room temperature and characterized by elemental analysis, spectroscopy as well as by single-crystal X-ray diffraction. The complex crystallizes in P21/n space group with a?=?10.007(2)?Å, b?=?15.285(7)?Å, c?=?19.20(1)?Å, β?=?91.22(3)°, V?=?2936(2)?Å3, Z?=?4, D c?=?1.847?g?cm?3. In the solid state structure, the dihedral angle [88.1(4)°] between the planes defined by the two quartets of atoms O1 O8 O2 O4 and O6 O5 O3 O7 is close to 90°, as expected for a triangulated dodecahedral geometry around uranium. 相似文献
6.
《Journal of Coordination Chemistry》2012,65(19):2045-2050
A lanthanide coordination complex [Eu(PAA)2(phen)(NO3)]2 (PAA?=?phenylacetic acid, phen?=?1,10-phenanthroline) has been synthesized by the hydrothermal method. Single crystal X-ray diffractions show that it forms a dimeric molecular structure. The title complex crystallizes in the triclinic system, space group P 1, with lattice parameters a?=?8.9473(8)?Å, b?=?13.3659(12)?Å, c?=?13.4745(12)?Å, α?=?60.7590(10)°, β?=?89.5100(10)°, γ?=?71.9850(10)°, V?=?1317.3(2)?Å3, D c?= 1.675?Mg?m?3, Z?=?1, F(000)?=?660, GOF?=?1.003, R 1?=?0.0206, wR 2?=?0.0575. The fluorescence excitation and emission spectra have been investigated. 相似文献
7.
《Journal of Coordination Chemistry》2012,65(3):472-478
An interesting metal-organic network with helical motifs, {[Zn2(mpdc)2(bpy)(H2O)2]?·?2H2O} (1, mpdc?=?2,6-dimethyl pyrdine-3,5-dicarboxylate), was synthesized under hydrothermal conditions, and characterized. Single-crystal X-ray structural analysis indicates that the title compound crystallizes in a monoclinic lattice, P2(1)/c with a?=?7.811(2), b?=?12.324(3), c?=?15.794(4)A, β?=?98.206(4)°, Z?=?2, V?=?1504.8(7)?Å3, D c?=?1.704?Mg?m?3, F(000)?=?816, R 1?=?0.0379, wR 2?=?0.0807. In the structure of 1 the helical strands composed of [Zn(mpdc)(H2O)] array in an interlacing fashion, and trap solvated water molecules to assemble a novel supramolecular network. Compound 1 exhibits strong photoluminescence in the solid state at room temperature. 相似文献
8.
9.
《Journal of Coordination Chemistry》2012,65(23):2597-2605
Two complexes [CuL2(H2O)2] (1) and [ZnL2(H2O)2] (2) (L?=?3-carboxyl-1,2,4-triazole (L)) have been synthesized and characterized by single-crystal X-ray diffraction analysis. Compound 1 crystallizes in the monoclinic space group P 2(1)/n, a?=?8.632(8)?Å, b?=?9.153(8)?Å, c?=?6.991(7)?Å, β?=?94.279(12)°, Z?=?2, R 1?=?0.0296, wR 2?=?0.0918. Compound 2 also crystallizes in the monoclinic space group P 2(1)/n, a?=?4.937(3)?Å, b?=?18.107(10)?Å, c?=?6.344(4)?Å, β?=?106.839(7)°, Z?=?2, R 1?=?0.0230, wR 2?=?0.0556. Extensive intermolecular hydrogen bonds assemble 1 and 2 into three-dimensional (3D) supramolecular architectures, with eight-member H-bonded synthons. Compounds 1 and 2 were also characterized by element analysis, FT–IR, luminescence and EPR studies. 相似文献
10.
《Journal of Coordination Chemistry》2012,65(18):2075-2081
The hydrothermal reactions of Nd(ClO4)3·6H2O, Gd(ClO4)3·6H2O, Dy(ClO4)3·6H2O, Er(ClO4)3·6H2O with 1,3-dicyanobenzene, give rise to four one-dimensional rare earth-based coordination polymers: [M(3-CNC6H4COO)3(H2O)2] n (where M?=?Nd (1), Gd (2), Dy (3), Er (4), 3-CNC6H4COO?=?3-cyanobenzoato), respectively. Their solid-state structures have been characterized by X-ray single-crystal diffraction studies. The results show that 1,3-dicyanobenzene hydrolyzed to give 3-cyanobenzoato under hydrothermal condition, and the four complexes are isomorphous. Crystal data for 1: triclinic, space group P-1, a?=?9.4063(19), b?=?11.485(2), c?=?12.616(3)?Å, α?=?66.38(3), β?=?74.01(3), γ?=?86.96(3)°, V?=?1197.9(4)?Å3, Z?=?1, D c?=?1.704?Mg?m?3; for 2: triclinic, space group P-1, a?=?9.3712(19), b?=?11.446(2), c?=?12.627(3)?Å, α?=?65.86(3), β?=?73.89(3), γ?=?86.84(3)°, V?=?1184.8(4)?Å3, Z?=?1, D c?=?1.759?Mg?m?3; for 3: triclinic, space group P-1, a?=?9.3425(19), b?=?11.432(2), c?=?12.703(3)?Å, α?=?65.28(3), β?=?73.80(3), γ?=?86.86(3)°, V?=?1180.6(4)?Å3, Z?=?1, D c?=?1.780?Mg?m?3; for 4: triclinic, space group P-1, a?=?9.3425(19), b?=?11.432(2), c?=?12.703(3)?Å, α?=?65.28(3), β?=?73.80(3), γ?=?86.86(3)°, V?=?1180.6(4)?Å3, Z?=?1, D c?=?1.7794?Mg?m?3. The fluorescence emission spectra of compounds 1 to 4 are also reported. 相似文献
11.
《Journal of Coordination Chemistry》2012,65(14):1557-1564
Reaction of the monovacant heteropolyanions α-[SiW11O39]8? with PhCH2PO(OH)2 leads to the formation of the organophosphoryl derivative α-[Bu4N]3H[PhCH2P(O)]2SiW11O39 (1). Single-crystal X-ray diffraction analysis shows that the crystal is monoclinic with space group P21 /n and the unit cell parameters: a?=?14.386 (3)?Å, b?=?27.015 (5)?Å, c?=?25.480 (5)?Å, α?=?90°, β?=?91.44 (3)°, γ?=?90°, V?=?9899 (3)?Å3. Z?=?4, D c?=?2.467?g?cm?1, λ (Mo-Kα)?=?0.071073?nm, R 1?=?0.0638, wR 2?=?0.1364. The hybrid anion consists of an α-[SiW11O39]8? framework on which two equivalent organophosphoryl groups are grafted through P?O?W bridges; each of the two PhCH2P(O) groups are connected to two terminal oxygen atoms belonging to a triad and a diad, respectively. 相似文献
12.
13.
《Journal of Coordination Chemistry》2012,65(10):1077-1082
Two new binuclear complexes, [Mn2(μ-dmpo)2(SCN)4(H2O)2] (1) (where dmpo?=?3,5-dimethylpyridine N-oxide), [Mn2(μ-po)2(H2O)6I2]I2 (2) (where po?=?pyridine N-oxide), have been synthesized and their crystal structures determined by X-ray crystallography. Complexes 1 and 2 crystallize in monoclinic, space group P21/c, with unit cell dimensions a?=?8.8836(18)?Å, b?=?15.450(3)?Å, c?=?15.484(3)?Å, β?=?91.020(3)° for 1, and a?=?8.8352(13)?Å, b?=?17.927(3)?Å, c?=?8.3338(12)?Å, β?=?103.765(2)° for 2. In each binuclear complex two Mn(II) were bridged by two 3,5-dimethylpyridine N-oxides or by two pyridine N-oxides and the distances between the bridged Mn(II) ions are 3.599?Å for 1 and 3.552?Å for 2. Variable temperature (4–300?K) magnetic measurements were performed for 1 and the susceptibility data were fitted by using a binuclear Mn(II) magnetic coupling formula producing the 2J?=??2.17?cm?1. 相似文献
14.
《Journal of Coordination Chemistry》2012,65(6):973-983
Three new triphosphonate compounds, [Zn(APTPH4)(2,2′-bipy)(H2O)]?·?2H2O (1), [Cd(APTPH4)(2,2′-bipy)(H2O)]?·?2H2O (2), and [Zn(APTPH4)(phen)2]?·?phen?·?4H2O (3) (APTPH6?=?1-aminopropane-1,1,3-triphosphonic acid, 2,2′-bipy?=?2,2′-bipyridine, phen?=?1,10-phenanthroline), are synthesized by a low-temperature hydrothermal method. Compounds 1 and 2 are isomorphous, both one-dimensional (1D) coordination polymers expanded into three-dimensional (3D) supramolecular structures by hydrogen bonds and π–π stacking interactions. Compound 3 is a molecular complex and forms a 3D network through an S-shaped water hexamer. Crystal data for 1: Triclinic, space group P 1, a?=?6.6814(5)?Å, b?=?10.0929(7)?Å, c?=?15.438(2)?Å, α?=?81.544(2)°, β?=?79.066(2)°, γ?=?82.278(2)°, Z?=?2; for 2: Triclinic, space group P 1, a?=?6.9380(8)?Å, b?= 10.043(2)?Å, c?=?15.681(2)?Å, α?=?81.357(2)°, β?=?78.510(2)°, γ?=?81.902(2)°, Z?=?2; Crystal data for 3: Triclinic, space group P 1, a?=?12.540(2)?Å, b?=?12.596(2)?Å, c?=?14.997(2)?Å, α?=?100.795(2)°, β?=?113.328(2)°, γ?=?101.358(2)°, Z?=?2. 相似文献
15.
《Journal of Coordination Chemistry》2012,65(24):4215-4225
Two new compounds of disphosphopentamolybdate (VI), (C6H18N2)2[H2P2Mo5O23]?·?2(H2O) (1) and (C6H18N2)4.5H3[P2Mo5O23]2?·?6(H2O) (2), have been synthesized under hydrothermal conditions and characterized by single-crystal X-ray diffraction. Compound 1 crystallizes in the triclinic space group P 1 with a?=?11.0863(9)?Å, b?=?11.9562(9)?Å, c?=?14.2291(19)?Å, α?=?103.0410(10)°, β?=?100.3530(10)°, γ?=?103.7390(10)°, V?=?1729.8(2)?Å3, Z?=?2; compound 2 crystallizes in the triclinic space group P 1 with a?=?14.6440(13)?Å, b?=?15.9168(13)?Å, c?=?17.9795(13)?Å, α?=?80.4270(10)°, β?=?86.1180(10)°, γ?=?64.1890(10)°, V?=?3720.1(5)?Å3, Z?=?2. Characterizations by elemental analysis, infrared analysis, and thermal analysis are also given. Formation of 1 and 2 indicates that pH of solution plays an important role during the synthesis. 相似文献
16.
《Journal of Coordination Chemistry》2012,65(24):4419-4429
Two metal complexes, [NiII(mscinn)2(pda)2] (1) and [CdII(mscinn)2(dmeda)2·2H2O] (2) (mscinn?=?4-methylsulfonyl cinnamate, pda?=?propane-1,3-diamine, dmeda?=?N′,N′-dimethylethane-1,2-diamine), were synthesized by reacting 4-methylsulfonyl cinnamate with the diamines and metal salts. Their structures were determined by single-crystal X-ray diffraction analysis. Crystal parameters of 1: C26H38N4NiO8S2, M?=?657.43, monoclinic, P21/c, a?=?16.6123(8)?Å, b?=?8.5956(4)?Å, c?=?11.2047(5)?Å, β?=?107.423(1)°, V?=?1526.54(12)?Å3, Z?=?2, D calcd?=?1.430?g?cm?3, F(000)?=?692, μ?=?0.825?mm?1, R 1?=?0.0257, wR 2?=?0.0669. Crystal data of 2: C28H42CdN4O8S2?·?2(H2O), M?=?775.24, monoclinic, P21/c, a?=?9.8278(4)?Å, b?=?11.6611(5)?Å, c?=?15.3972(7)?Å, β?=?96.195(1)°, V?=?1754.26(13)?Å3, Z?=?2, D calcd?=?1.468?g?cm?3, F(000)?=?804, μ?=?0.798?mm?1, R 1?=?0.0299, wR 2?=?0.0770. Antimicrobial activities for 1 and 2 against Escherichia coli, Pseudomonas putida, Bacillus subtilis, and Bacillus cereus had better antibacterial activity than their parent carboxylic acid against Gram-positive bacteria (B. subtilis and B. cereus). The cadmium complex of the cinnamate displayed high inhibitory activity with an MIC value of 5?µg?mL?1 against P. putida, while the nickel complex also exhibited good inhibitory potency with an MIC value of 5?µg?mL?1 against B. subtilis. 相似文献
17.
《Journal of Coordination Chemistry》2012,65(15):1681-1690
Three new complexes [CuL(N3)2] (1), [CuL(SCN)2] (2), and [CoL(SCN)3] (3) (L?=?1,4,7-tribenzyl-1,4,7-triazacyclononane) have been synthesized and structurally characterized. Complex 1 crystallizes in monoclinic space group P2(1)/n with unit cell parameters a?=?14.105(7), b?=?8.999(5), c?=?21.603(11)?Å, β?=?100.470(7)°. While 2 crystallizes in triclinic space group P-1 with unit cell parameters a?=?9.6380(16), b?=?10.6993(18), c?=?15.798(3)?Å, α?=?106.636(3), γ?=?116.478(3)°. Complex 3 crystallizes in trigonal space group P–3c1 with unit cell parameters a?=?14.744(3), b?=?14.744(3), c?=?16.098(4)?Å, γ?=?120°. Elemental analysis, IR, UV-vis spectra of complexes 1–3 and ESR spectra of complexes 1–2 were also determined. 相似文献
18.
《Journal of Coordination Chemistry》2012,65(3):450-454
The trinuclear titanium(IV) β-diketonate complex, [Ti3(μ-O)3(dppd)6]?·?(DMF)(0.5EtOH) (1) (H-dppd?=?1,3-diphenylpropane-1,3-dione) has been synthesized and its crystal structure and spectroscopic properties have been studied. Complex 1 crystallizes in monoclinic system with space group C2/c and a?=?20.954(5)?Å, b?=?18.705(4)?Å, c?=?24.617(6)?Å, β?=?111.957(4)°, Z?=?4. The complex consists of a six-membered [Ti–(μ-O)]3 ring, of which three titanium(IV) ions are linked together by bridging oxygen atoms. Each titanium(IV) possesses an octahedral geometry, with four oxygen atoms from the two β-diketonate ligands and two bridging oxygen atoms. 相似文献
19.
《Journal of Coordination Chemistry》2012,65(19):3458-3468
Two organic–inorganic compounds based on Keggin building blocks have been synthesized by hydrothermal methods, (C7N2H7)3(C7N2H6)?·?PMo12O40?·?2H2O (1) and (C7N2H7)3(C7N2H6)2?·?AsMo12O40?·?3H2O (2) (C7N2H6?=?benzimidazole). Single-crystal X-ray analysis revealed that 1 crystallized in the triclinic system, P-1 space group with a?=?9.8980(4)?Å, b?=?11.2893(4)?Å, c?=?25.8933(9)?Å, α?=?93.307(2)°, β?=?90.630(2)°, γ?=?108.330(2)°, V?=?2740.68(18)?Å3, Z?=?2, R 1(F)?=?0.0740, ωR 2(F 2)?=?0.1511, and S?=?1.037; 2 crystallized in the triclinic system, P-1 space group with a?=?12.3353(4)?Å, b?=?13.2649(4)?Å, c?=?20.2878(6)?Å, α?=?95.6630(10)°, β?=?100.1720(10)°, γ?=?99.3940(10)°, V?=?3195.72(17)?Å3, Z?=?2, R 1(F)?= 0.0329, ωR2 (F 2)?=?0.1236, and S?=?1.088. The two compounds show a layer framework constructed from Keggin-polyoxoanion clusters and benzimidazole via hydrogen bonds and π–π stacking interactions, resulting in a 3-D supramolecular network. Both have high catalytic activity for oxidation of methanol. When the initial concentration of the methanol is 5.37?g?m?3 in air and the flow velocity is 4.51?mL?min?1, methanol is completely eliminated at 150°C for 1 (160°C for 2). 相似文献
20.
《Journal of Coordination Chemistry》2012,65(8):1244-1252
Two one-dimensional linear coordination polymers, [Mg(L)?·?4(H2O)] (H2L?=?olsalazine) and 2 [Ca(L)?·?4(H2O)] were obtained from self-assembly of CaCl2 or MgSO4 with olsalazine and their structures determined by single crystal X-ray diffraction. Both complexes are one-dimensional polymers, for complex 1 with crystal data: P2(1)/c, a?=?9.5224(18), b?=?11.309(2), c?=?16.211(3)?Å, β?=?106.648(3)°, V?=?1672.6(6)?Å3, Z?=?4, R 1?=?0.0695, wR 2?=?0.2183, for complex 2 with crystal data: P4(3)2(1)2, a?=?10.4006(2), b?=?10.4006(2), c?=?32.0746(10)?Å, V?=?3469.59(14)?Å3, Z?=?8, R 1?=?0.0332, wR 2?=?0.1015. In the complexes, Mg and Ca adopt totally different coordination modes. Alkaline-earth Mg is six-coordinate octahedronal geometry, however, in 2, the local coordination geometry around calcium atom can be best described as a slightly distorted pentagonal bipyramid crystallizing in a homo-chiral space group. Olsalazine in both compounds also adopts dissimilar coordination modes. 相似文献