Co-reporter:Dr. Qingfu Zhang;Aijing Geng;Haina Zhang;Falu Hu;Dr. Zhang-Hui Lu;Dr. Dezhi Sun; Xilian Wei;Dr. Chunlin Ma
Chemistry - A European Journal 2014 Volume 20( Issue 17) pp:4885-4890
Publication Date(Web):
DOI:10.1002/chem.201304784
Abstract
The syntheses and structures of two new ZnII complexes, a 2D graphite-like layer {[Zn(PIA)H2O]⋅H2O}n (1) and an independent 1D single-walled metal–organic nanotube (SWMONT) {[Zn2(PIA)2(bpy)2]⋅2.5 H2O⋅DMA}n (2), have been reported based on a “Y”-shaped 5-(pyridine-4-yl)isophthalic acid ligand (H2PIA). Interestingly, the 2D graphite-like layer in 1 can transform into the independent 1D SWMONT in 2 with addition of 2,2′-bipyridine (bpy), which represents the first successfully experimental example of an independent 1D metal–organic nanotube generated from a 2D layer by a “rolling-up” mechanism.
Co-reporter:Qingfu Zhang;Hongguo Hao;Haina Zhang;Suna Wang;Juan Jin ;Dezhi Sun
European Journal of Inorganic Chemistry 2013 Volume 2013( Issue 7) pp:1123-1126
Publication Date(Web):
DOI:10.1002/ejic.201201359
Abstract
Two enantiomorphic MgII/carboxylate coordination polymers [Mg(bpda)(H2O)4]n (1M and 1P) have been obtained by spontaneous resolution from achiral precursors, 2,2′-bipyridyl-3,3′-dicarboxylic acid (H2bpda) and Mg(NO3)2·6H2O, upon crystallization without any chiral auxiliary. X-ray structural analysis shows that chiral transmission from molecular axially chiral conformations to crystal chirality is established through concerted coordination and H-bonding interactions. In addition, the CD data, and the thermal and photoluminescence properties in the solid state have also been discussed.
Co-reporter:Dr. Qingfu Zhang;Haina Zhang;Dr. Suyuan Zeng;Dr. Dezhi Sun;Dr. Chong Zhang
Chemistry – An Asian Journal 2013 Volume 8( Issue 9) pp:1985-1989
Publication Date(Web):
DOI:10.1002/asia.201300618
Co-reporter:Qingfu Zhang, Falu Hu, Yongfang Zhang, Wenhua Bi, Daqi Wang, Dezhi Sun
Inorganic Chemistry Communications 2012 Volume 24() pp:195-199
Publication Date(Web):October 2012
DOI:10.1016/j.inoche.2012.07.010
Two new coordination polymers, [Zn(mpba)2]n (1) and [Cd(H2O)(mpba)2]n (2), have been prepared by reactions of M(NO3)2·6H2O (M = Zn for 1, Cd for 2) with an unsymmetric 3-methyl-5-(pyridin-4-yl)benzoic acid (Hmpba) under hydrothermal condition. Both complexes 1 and 2 were characterized by elemental analyses, FT-IR spectra and single-crystal X-ray diffraction analyses. Structural analyses reveal that complex 1 displays a 2D network with sql topology, while complex 2 exhibits a 3D framework with 2-fold interpenetrated cds topology. Furthermore, the thermal and photoluminescent properties of complexes 1 and 2 have also been investigated in the solid state.Two new d10 metal (ZnII/CdII) coordination polymers with 3-methyl-5-(pyridin-4-yl)benzoic acid have been hydrothermally prepared and structurally characterized. Complexes 1 and 2 show sql and 2-fold interpenetrated cds topologies, respectively. The thermal and photoluminescent properties of complexes 1 and 2 have also been investigated in the solid state.Highlights► Complexes 1 and 2 have been hydrothermally assembled by the unsymmetric ligand 3-methyl-5-(pyridin-4-yl)benzoic acid. ► Complexes 1 and 2 show sql and 2-fold interpenetrated cds topologies, respectively. ► The high thermostability and intense photoluminescence for 1 and 2 have been observed in the solid state.
Co-reporter:Qingfu Zhang;Haina Zhang;Jinyun Wang;Chong Zhang;Dezhi Sun
Heteroatom Chemistry 2012 Volume 23( Issue 5) pp:435-443
Publication Date(Web):
DOI:10.1002/hc.21034
Abstract
A new thiotetrazole compound, 4-((1-phenyl-1H-tetrazol-5-ylthio)methyl) benzoic acid (1), has been synthesized and characterized by elemental analysis, 1H and 13C NMR, ESI-MS, FT-IR, UV–vis, fluorescence spectra, and single-crystal X-ray diffraction analysis. The structural analysis reveals that compound 1 adopts a nonplanar geometric structure and exhibits an extensive but not uniform π delocalization with all members of the tetrazolyl ring and the exocyclic sulfur atom. A density functional theory (DFT) calculation at B3LYP/6-31G** level of theory was performed to elucidate the structure of this thiotetrazole system. And the time-dependent DFT (TD-DFT) calculations of absorption spectra reveal two electron-transition bands derived from the contribution of π π* transitions, which are in agreement with experimental results. Moreover, compound 1 exhibits a blue-light emission (λem = 441 nm) in the solid state at room temperature. © 2012 Wiley Periodicals, Inc. Heteroatom Chem 23:435–443, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/hc.21034
Co-reporter:Qingfu Zhang;Jiandong Pang;Suyuan Zeng;Caihua Liu
Journal of Chemical Crystallography 2012 Volume 42( Issue 3) pp:271-275
Publication Date(Web):2012/03/01
DOI:10.1007/s10870-011-0238-9
A new bishydrazone compound, N,N′-di[(E)-1-(2-hydoxyphenyl)methylidene]-2,6-naphthalenedicarbohydrazide (1), has been prepared by condensation reaction of 2,6-naphthalenedicarbohydrazide with salicylaldehyde in ethanol, and characterized by elemental analysis, FT-IR, 1H- and 13C-NMR, ESI–MS and single-crystal X-ray diffraction analysis. The crystal of 1·2DMF belongs to monoclinic, space group P2(1)/n with a = 10.454(1), b = 7.711(1), c = 18.801(2) Å, β = 93.364(1)°, V = 1512.9(3) Å3, Z = 2, Dc = 1.314 g cm−3, μ = 0.093 mm−1, F(000) = 632, Mr = 598.65, the final R1 = 0.0861 and wR2 = 0.2279 for 7243 observed reflections with I > 2σ(I). The structural analysis reveals that compound 1·2DMF contains one N,N′-di[(E)-1-(2-hydoxyphenyl)methylidene]-2,6-naphthalenedicarbohydrazide molecule and two N,N-dimethylformamide solvent molecules. A 2D supramolecular structure of 1·2DMF was constructed by multiple intermolecular N–H···O and C–H···O hydrogen bonds.
Co-reporter:Qingfu Zhang;Aijing Geng;Zhipeng Liu;Yang Shi
Journal of Chemical Crystallography 2012 Volume 42( Issue 11) pp:1124-1128
Publication Date(Web):2012 November
DOI:10.1007/s10870-012-0367-9
An aroyl acylamide compound, tetramethyl 5,5′-(terephthaloylbis(azanediyl))-diisophthalate (1), has been prepared by nucleophilic substitution reaction of dimethyl 5-aminoisophthalate and terephthaloyl chloride, and characterized by elemental analysis, FT-IR, 1H-NMR, ESI–MS and single-crystal X-ray diffraction. The crystal of 1·2DMF belongs to monoclinic space group P2/c with a = 21.609(2) Å, b = 4.060(1) Å, c = 21.606(2) Å, β = 112.805(1)°, V = 1747.4(3) Å3, Z = 2, Dc = 1.320 Mg m−3, μ = 0.101 mm−1, F(000) = 732, Mr = 694.68, the final R1 = 0.0879 and wR2 = 0.1872 for 8091 observed reflections with I > 2σ(I). The structural analysis reveals that compound 1·2DMF contains one tetramethyl 5,5′-(terephthaloylbis-(azanediyl))-diisophthalate and two N,N-dimethylformamide solvent molecules. A 3D supramolecular structure of 1·2DMF is constructed by multiply intermolecular C–H···O H-bonds and π–π stacking interactions. In addition, compound 1 exhibits a strong blue fluorescence at 413 nm in the solid state at room temperature.
Co-reporter:Chengchen Zhu, Liguo Yang, Dacheng Li, Qingfu Zhang, Jianmin Dou, Daqi Wang
Inorganica Chimica Acta 2011 Volume 375(Issue 1) pp:150-157
Publication Date(Web):1 September 2011
DOI:10.1016/j.ica.2011.04.049
Four new organotin(IV) complexes [(Bu3Sn)(FcCOO)]n (1), [(μ-Bu2Sn)2(μ-Bu2SnFcCOO)2(μ3-O)2(μ-OCH3)2]2 (2), [Ph3Sn(FcCOO)(H2O)](phen) (3) and [{Ph3Sn(FcCOO)}2(4,4′-bipy)] (4) [Fc = (η5-C5H5)Fe(η5-C5H4)] have been synthesized and characterized by elemental analyses, IR, (1H and 13C) NMR spectra and X-ray single-crystal diffraction analyses. The structure analyses show that all tin atoms in complexes 1–4 are five-coordinated with trigonal bipyramid geometry. Complexes 1–4 and FcCOOH undergo reversible one-electron oxidations in methanol solution. The antitumor activities of complexes 1–4 have also been tested. Complexes 1 and 2 exhibit medium activity towards P388 cell lines and Hela cell lines. Complexes 3 and 4 exhibit medium activity towards P388 cell lines but strong activity towards Hela cell lines. This may result from complexes 3 and 4 including the neutral molecules 1,10-phenanthroline and 4,4′-bipy.Graphical abstractFour new organotin(IV) complexes [(Bu3Sn)(FcCOO)]n (1), [(μ-Bu2Sn)2(μ-Bu2SnFcCOO)2(μ3-O)2(μ-OCH3)2]2 (2), [Ph3Sn(FcCOO)(H2O)](phen) (3) and [{Ph3Sn(FcCOO)}2(4,4′-bipy)] (4) [Fc = (η5-C5H5)Fe(η5-C5H4)] have been synthesized and characterized by elemental analyses, IR, (1H and 13C) NMR spectra and X-ray single-crystal diffraction analyses. Antitumor activities of complexes 1–4 have also been tested.Highlights► Four new organotin(IV) complexes have been synthesized and characterized. ► Antitumor activities of complexes 1–4 have been tested. ► Complexes 1 and 2 exhibit medium activity towards P388 cell lines and Hela cell lines. ► Complexes 3 and 4 exhibit medium activity towards P388 cell lines and strong activity towards Hela cell lines.
