Hydrothermal Synthesis, Crystal Structure and Properties of a Novel Phosphorus-containing 3D Metal- Organic Cd(II) Coordination Polymer

2012 ◽  
Vol 67 (9) ◽  
pp. 951-955 ◽  
Author(s):  
Chong-Zhen Mei ◽  
Xi-Ying Hu ◽  
Guang-Rui Yang ◽  
Kai-Hui Li ◽  
Wen-Wen Shan

A metal-organic framework [Cd(dppip)]n (1) based on 5-(diphenylphosphino)isophthalic acid (H2dppip) has been synthesized hydrothermally and characterized by IR spectroscopy, elemental analysis, and X-ray crystallography. [Cd(dppip)]n shows a sheet structure owing to carboxylate bridging with windows with dimensions 10.692 x 9.325 Å2. The layers are further connected through P-Cd interactions to give a three-dimensional supramolecular network. The thermal analysis (DTA) of complex 1 exhibited an exceptionally high thermal stability (m. p. 452:8 °C). The compound shows fluorescence at ca. 418 nm upon excitation at 314 nm

2013 ◽  
Vol 68 (4) ◽  
pp. 403-407 ◽  
Author(s):  
Ting-Ting Kang ◽  
Hao Tang ◽  
Yong-Li Wei ◽  
Shuang-Quan Zang

A chiral two-dimensional (2D) coordination polymer {[Zn(cmmb)(1,4-bbi)]·H2O}n (1) has been synthesized by a hydrothermal reaction of Zn(NO3)2·6H2O with 4- (carboxymethoxy)-2-methylbenzoic acid (H2cmmb) and 1,1`-(1,4-butanediyl)bis(imidazole) (1,4-bbi). It has been characterized by elemental analysis, X-ray crystallography, IR spectroscopy and thermogravimetry, and also by its fluorescence properties. The metal-organic layer of the complex is held together with its neighbors via C-H···O hydrogen bonds to give rise to a chiral three-dimensional supramolecular network.


2013 ◽  
Vol 68 (2) ◽  
pp. 127-132
Author(s):  
Hai-Hua Li ◽  
Peng Zhang ◽  
Jia-Yi Pu ◽  
Yu-Ying Zhao ◽  
Chong-Zhen Mei

A metal-organic framework based on 4-methylphthalic acid (H2L) and 4,4’-bipyridine (bpy), namely {[Cd(L)(bpy)1:5]·2(H2O)}n (1), has been synthesized hydrothermally and characterized by IR spectroscopy, elemental analysis, thermogravimetry, and single-crystal X-ray crystallography. Complex 1 exhibits a 3D coordination network based on layers. Each layer consists of left- or right-handed {Cd-L-Cd-bpy-Cd-L-Cd-bpy}n double helices.Water molecules are also incorporated in the network. Compound 1 shows fluorescence at ca. 360 nm upon excitation at 304 nm.


2012 ◽  
Vol 67 (5) ◽  
pp. 499-503
Author(s):  
Ming-Ming Dong ◽  
Deng-Yong Zhu ◽  
Yan Zhao ◽  
Xiao-Yuan Li ◽  
Shuang-Quan Zang

A metal-organic framework based on 5-iodo-isophthalic acid (5-iipaH2) and the ancillary nitrogen ligand 1,3-bi(4- pyridyl)propane (bpp), namely [Cd(5-iipa)(bpp)(H2O)]n (1), has been synthesized, and characterized by IR spectroscopy, elemental analysis, thermogravimetry, and X-ray crystallography. Complex 1shows a two-fold interpenetrating 3D diamond-like architecture that is stabilized by hydrogen bonding, μ...μ, I...μ, and C-H...p interactions.


2013 ◽  
Vol 68 (4) ◽  
pp. 351-356 ◽  
Author(s):  
Jun Li Wang ◽  
Hai Yan Li ◽  
Chen Hong Liu ◽  
Yan Bai

A Mn(II) metal-organic framework {[MnL2(NCS)2]·(H2O)4}n (1) with L=bis(pyridin-3-ylmethylene) biphenyl-2,20`-dicarbohydrazide has been synthesized and characterized by IR spectroscopy, elemental analysis, UV spectroscopy, thermogravimetric (TG) analysis, powder X-ray diffraction, and single-crystal X-ray structure determination. The Mn(II) atom has a distorted octahedral coordination environment with an N6 donor set from four ligands and two NCS- anions. The structure of 1exhibits a layer framework containing tetranuclear metallacyclic ring units [MnII4L4] in the chair conformation. In addition, there are multiform O-H···O, C-H···O, N-H···O, and C-H···N hydrogen bonds and C-H···p interactions in a three-dimensional supramolecular network.


2022 ◽  
Author(s):  
Xiang Han ◽  
Tiantian Wu ◽  
Lanhui Gu ◽  
Dian Tian

A three-dimensional (3D) metal-organic framework containing Li-oxygen clusters, namely {[Li2(IPA)]·DMF}n (1) (H2IPA = isophthalic acid), has been constructed under solvothermal conditions. The Li-based MOF can be applied to lithium energy...


2019 ◽  
Vol 74 (6) ◽  
pp. 485-489
Author(s):  
Yuan Huang ◽  
Xiu-feng Yu ◽  
Zhen Rong ◽  
Yi-chun Ai ◽  
Kun Qian ◽  
...  

AbstractA new complex [Pr3NH]+ [Mn(dca)3]− · H2O (dicyanamide = dca−) was synthesized, in which the Mn2+ cations are bridged by end-to-end dca anions to form three-dimensional [Mn(dca)3]nn− networks and tripropylammonium cations reside in the cavities of these networks. The complex has been characterized by single-crystal X-ray diffraction, infrared spectroscopy, elemental analysis, and magnetic measurements. Magnetic susceptibility data indicate ferromagnetic interactions among the MnII ions.


2020 ◽  
Vol 75 (4) ◽  
pp. 347-352
Author(s):  
Liang Liang ◽  
Chen-Dong Pan ◽  
Jun Wang

AbstractA new Cu(II) metal-organic framework, [Cu(BMIOPE)(Br-BDC)]n (1) [Br-H2BDC = 5-bromo-isophthalic acid, BMIOPE = 4,4′-bis(2-methylimidazol-1-yl)diphenyl ether], has been hydrothermally synthesized and characterized through IR spectroscopy, elemental and thermal analysis, and single-crystal X-ray diffraction. Complex 1 possesses a unique two-fold interpenetrating two-dimensional framework with sql topology. The photocatalytic property of complex 1 for oxidative degradation of methyl orange and methylene blue with hydrogen peroxide was examined under UV irradiation.


RSC Advances ◽  
2019 ◽  
Vol 9 (28) ◽  
pp. 16183-16186 ◽  
Author(s):  
W. Xu ◽  
S. S. Yu ◽  
H. Zhang ◽  
H. B. Duan

A MOFs compound [NH2(CH3)2]2[Zn3(bpdc)4]·3DMF (1) shows two step dielectric relaxation and its guest-free framework (1′) possesses an ultra-low κ value of 1.80 (at 100 kHz) over a wide temperature range and high thermal stability.


2019 ◽  
Vol 75 (8) ◽  
pp. 1053-1059 ◽  
Author(s):  
Lin-Lu Qian ◽  
Zhi-Xiang Wang ◽  
Hai-Xin Tian ◽  
Min Li ◽  
Bao-Long Li ◽  
...  

Metal–organic frameworks (MOFs) have attracted much interest in the fields of gas separation and storage, catalysis synthesis, nonlinear optics, sensors, luminescence, magnetism, photocatalysis gradation and crystal engineering because of their diverse properties and intriguing topologies. A Cu–MOF, namely poly[[(μ2-succinato-κ2 O:O′){μ2-tris[4-(1,2,4-triazol-1-yl)phenyl]amine-κ2 N:N′}copper(II)] dihydrate], {[Cu(C4H4O4)(C24H18N10)]·2H2O} n or {[Cu(suc)(ttpa)]·2H2O} n , (I), was synthesized by the hydrothermal method using tris[4-(1,2,4-triazol-1-yl)phenyl]amine (ttpa) and succinate (suc2−), and characterized by IR, powder X-ray diffraction (PXRD), luminescence, optical band gap and valence band X-ray photoelectron spectroscopy (VB XPS). Cu–MOF (I) shows a twofold interpenetrating 4-coordinated three-dimensional CdSO4 topology with point symbol {65·8}. It presents good photocatalytic degradation of methylene blue (MB) and rhodamine B (RhB) under visible-light irradiation. A photocatalytic mechanism was proposed and confirmed.


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