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Том 44, № 9 (2018)
- Год: 2018
- Статей: 8
- URL: https://journals.rcsi.science/1070-3284/issue/view/13328
Article
Two Novel Supramolecules Built by Dimethylphenyl Imidazole Dicarboxylate: Syntheses, Structures, and Thermal Properties
Аннотация
By solvothermal reactions of ZnSO4 ⋅ 7H2O and NiSO4 ⋅ 6H2O with 2-(3,4-dimethylphenyl)-1H-imidazole-4,5-dicarboxylic acid (3,4-DMPhH3IDC), respectively, two supramolecular complexes, [Zn(3,4-DMPhHIDC)2(H2O)2]n (I) and [Ni(3,4-DMPhHIDC)2(H2O)2]n (II) have been successfully prepared and structurally characterized by single-crystal X-ray diffraction (CIF files CCDC nos. 1440305 (I) and 1440316 (II)), elemental analyses, and IR spectroscopy. The results show that ligand 3,4-DMPhH3IDC in the two complexes has quite strong coordination ability, and the 3D solid-state supramolecular structures of I and II involve intermolecular hydrogen bonds. The thermal properties of the complexes have also been investigated and discussed.
533-539
Structural Diversity of Two Coordination Polymers based on Bis(4-(1H-imidazol-1-yl)phenyl)methanone and Polycarboxylate Coligands: Syntheses, Structures, and Fluorescent Properties
Аннотация
Two novel coordination polymers, [Zn2(Bipmo)2(Adip)2 · 2H2O]n (I), [Zn(Bipmo)(Adip) · 2H2O]n (II) (Bipmo = bis(4-(1H-imidazol-1-yl)phenyl)methanone, H2Adip = adipic acid) with unprecedented structures, have been synthesized and structurally characterized. by single-crystal X-raydiffraction (CIF files CCDC nos. 1555292 (I), 1555289 (II)). Complex I exhibits 4-fold interpenetrating wave-like sheets, which interpenetrate in a 2D → 2D parallel manner and pillar to generate 3D architectures. Complex II consists of a 2-fold 4-connected 3D coordination polymers network with a point symbol of (65.8). The results indicate that the central metal ions, polycarboxylate and semirigid co-ligands have a great effect on the formation and the structures of the coordination polymers. Moreover, the thermal stability and the luminescent properties of complexes I, II were investigated.
540-546
Syntheses, Structural Characterization, and Properties of Ag(I) Complexes from Oxazoline-Based Ligands
Аннотация
The reactions of 2,6-di(2-oxazolyl)pyridine (L1), 2-[(S)-4-phenyl-2-oxazolyl]quinoline (L2) and 2-[(S)-4-isopropyl-2-oxazolyl]quinoline (L3) with silver nitrate yield three new complexes {[Ag5(L1)5]-(NO3)5}n (I), [Ag(L2)(NO3)] (II), and [Ag(L3)(NO3)(CH3CN)] (III), which have been fully characterized by single-crystal X-ray diffraction (CIF files nos. 1553091, 1553092, and 1559788, respectively), IR spectroscopy, and elemental and thermogravimetric analyses. Complex I shows a helical chain structure and the spiral directions of the chains are opposite, resulting in an achiral meso structure. Both II and III display discrete mononuclear structures. Fluorescence and non-linear optical (NLO) properties of the complexes were investigated.
547-552
Crystal Structure and Anti-Ovarian Activity of Two Novel Coordination Polymers [Cu2(o-Сpia)(OH)(Bitb)0.5]n and {[Zn7(OH)4(Bta)4(H2O)2](H2NMe2)2(DMF)3}n
Аннотация
Two new coordination polymers, namely [Cu2(o-Cpia)(OH)(Bitb)0.5]n (I) (H3o-Cpia = 5-(2-carboxy-phenoxy)-isophthalic acid, Bitb = 1,4-bis(1,2,4-triazol-1-yl)-butane) and {[Zn7(OH)4(Bta)4-(H2O)2](H2NMe2)2(DMF)3}n (II) (H3Bta = biphenyl-3′-nitro-3,4′,5-tricarboxylic acid, DMF = N,N′-dimethylformamide), have been successfully constructed under solvothermal conditions. The structures of the two complexes have been successfully determined by single crystal X-ray diffraction (CIF files CCDC nos. 1811807 (I) and 1811808 (II)). In addition, in vitro antitumor activity of compounds I and II on four human ovarian cancer cells (OV2, 3AO, OVCA420, OVCA429) was further determined and the results show that the two compounds showed promising activity.
553-558
Synthesis and Crystal Structure of Binuclear Half-Sandwich Rhodium Carborane Complex
Аннотация
Reaction of unsaturated 16e half-sandwich rhodium carborane complex [Cp*Rh(S2C2B10H10)] (Cp* = pentamethyl-cyclopentadienyl) with half equiv. (m-pyridyl)N=C(C10H6)C=N(m-pyridyl) (mPy-Bian, L) afforded a bi-nuclear complex [{Cp*Rh(S2C2B10H10)}2(μ-L)] (I), leaving α-diimine moiety of the L ligand as free coordination site. Compounds L and I have been characterized by single crystal X-ray diffraction (CIF files nos. 1586584 (L) and 1586585 (I)). Compound L crystallizes in the monoclinic space group C2/c with a = 21.51(3), b = 8.884(13), c = 9.414(14) Å, β = 112.540(19)°, and Z = 4. Complex I crystallizes in the orthorhombic space group Pnma with a = 15.741(2), b = 34.062(5), c = 14.960(2) Å, and Z = 4.
559-564
Syntheses, Crystal Structures, and Fluorescence Properties of 3d–4f Coordination Polymers LnNi (Ln = Er, Eu)
Аннотация
Two novel 3d–4f coordination polymers [Ln(NiL)(Nipt)(C2O4)0.5 · H2O] · H2O (Ln = Er (I), Eu (II) (H2L = 2,3-dioxo-5,6,14,15-dibenzo-1,4,8,12-tetraazacyclopentadeca-7,13-dien; H2Nip = 5-nit-roisophthalic acid) were obtained by using 5-nitroisophthalate and mononuclear macrocyclic oxamide complex NiL as co-ligand to react with Ln(NO3)3 ⋅ 6H2O (Ln = Er, Eu) under solvothermal condition, and characterized by single crystal X-ray diffraction (CIF files CCDC nos. 1587618 (I) and 1587619 (II)). Two complexes are isostructural structure and exhibit a two-dimensional network architecture formed by [Ln(III)Ni(II)] units via the oxamide, 5-nitroisophthalate and oxalate bridges, and adjacent 2D structures are linked together with C–H⋅⋅⋅O and O–H⋅⋅⋅O intermolecular hydrogen bonds to form a 3D superamolecular architectures. The fluorescence properties of I and II are also characterized.
565-571
Synthesis, Characterization, and Crystal Structures of Dioxomolybdenum(VI) Complexes Derived from Similar Tridentate Hydrazone Compounds with Catalytic Property
Аннотация
Two hydrazone compounds 2-chloro-N'-(2-hydroxy-4-methoxybenzylidene)benzohydrazide (H2L1) and N'-(2-hydroxy-4-methoxybenzylidene)-3-methylbenzohydrazide (H2L2) were prepared and characterized by IR, UV-Vis and 1H NMR spectra. Based on the hydrazone compounds, two new structurally similar dioxomolybdenum(VI) complexes, [MoO2L1(CH3OH)] (I) and [MoO2L2(CH3OH)] (II), were prepared and characterized by IR and UV-Vis spectra, and single crystal X-ray diffraction (CIF files nos. 1566491 (I) and 1566492 (II)). Complex I crystallizes as the triclinic space group P\(\bar {1}\) with unit cell dimensions a = 8.0750(5), b = 10.5223(7), c = 10.8110(7) Å, α = 96.975(2)°, β = 97.909(2)°, γ = 104.497(2)°, V = 869.2(1) Å3, Z = 2, R1 = 0.0323, wR2 = 0.0620, GOOF = 1.089. Complex II crystallizes as the monoclinic space group P21/n with unit cell dimensions a = 11.680(1), b = 10.496(2), c = 14.879(2) Å, β = 98.862(2)°, V = 1802.2(4) Å3, Z = 4, R1 = 0.0270, wR2 = 0.0675, GOOF = 1.111. X-ray analysis indicates that the complexes are mononuclear dioxomolybdenum(VI) species with the Mo atoms in octahedral coordination. The complexes were studied for their catalytic oxidation property on some olefins with tert-butyl hydrogen peroxide as oxidant.
572-578
Crystal Structure and Biological Activity of Two Novel Coordination Polymers as Anti-Gastric Cancer Agents
Аннотация
Two new coordination polymers, namely [Cd2(Mna)2(Phen)]n (I) (H2Mna = 6-mercaptonicotinic acid, Phen = 1,10-phenanthroline) and {[Mn(Ddca)(Phen)](H2O)}n (II) (H2Ddca = 6,6'-dithiodinicotinic acid), have been obtained by using H2Ddca and Phen as the organic building blocks under different reaction conditions. The structures of these complexes have been successfully determined by single crystal X-ray diffraction (CIF files CCDC nos. 1811835 (I), 1811836 (II)). In addition, in vitro antitumor activity of compounds I and II on four human gastric cancer cells (MGC-803, BGC-823, SGC-7901 and AGS) was further determined and the results show that the two compounds showed promising activity.
579-583