From chain to layer structure: CdII coordination polymers derived from diphenic acid

2006 ◽  
Vol 784 (1-3) ◽  
pp. 1-6 ◽  
Author(s):  
Rui-Hu Wang ◽  
Ya-Qiong Gong ◽  
Lei Han ◽  
Da-Qiang Yuan ◽  
Ben-Yong Lou ◽  
...  
CrystEngComm ◽  
2021 ◽  
Vol 23 (1) ◽  
pp. 140-145
Author(s):  
Le-Tian Zhang ◽  
Bin Xia ◽  
Xia Zhang ◽  
Sha Lu ◽  
Xian-Xian Zhou ◽  
...  

Two novel photochromic complexes [Zn2(bpdc)2(m-DPNDI)2]·H2O (1) and [Cd(bpdc)(m-DPNDI)]·H2O (2) (H2bpdc = 4,4′-diphenic acid, m-DPNDI = N,N′-bis(3-pyridyl)-1,4,5,8-naphthalenetetracarboxydiimide) were prepared through a solvothermal method.


2010 ◽  
Vol 63 (7) ◽  
pp. 1130-1138 ◽  
Author(s):  
Feng Guo ◽  
Baoyong Zhu ◽  
Xiuling Zhang ◽  
Yulan Song ◽  
Ping Wu

2015 ◽  
Vol 71 (7) ◽  
pp. 618-622 ◽  
Author(s):  
Shao-Ming Ying ◽  
Jing-Jing Ru ◽  
Wu-Kui Luo

Metal–organic frameworks (MOFs) have potentially useful applications and an intriguing variety of architectures and topologies. Two homochiral coordination polymers have been synthesized by the hydrothermal method, namely poly[(μ-N-benzyl-L-phenylalaninato-κ4O,O′:O,N)(μ-formato-κ2O:O′)zinc(II)], [Zn(C16H16NO2)(HCOO)]n, (1), and poly[(μ-N-benzyl-L-leucinato-κ4O,O′:O,N)(μ-formato-κ2O:O′)zinc(II)], [Zn(C13H18NO2)(HCOO)]n, (2), and studied by single-crystal X-ray diffraction, elemental analyses, IR spectroscopy and fluorescence spectroscopy. Compounds (1) and (2) each have a two-dimensional layer structure, with the benzyl or isobutyl groups of the ligands directed towards the interlayer interface. Photoluminescence investigations show that both (1) and (2) display a strong emission in the blue region.


2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Kui-Rong Ma ◽  
Chun-Li Wei ◽  
Yu Zhang ◽  
Yu-He Kan ◽  
Ming-Hui Cong ◽  
...  

The two examples of alkaline-earth M(II)-phosphonate coordination polymers, [Ba2(L)(H2O)9]·3H2O (1) and [Mg1.5(H2O)9]·(L-H2)1.5·6H2O (2) (H4L = H2O3PCH2N(C4H8)NCH2PO3H2),N,N′-piperazinebis(methylenephosphonic acid), (L-H2= O3PH2CHN(C4H8)NHCH2PO3) have been hydrothermally synthesized and characterized by elemental analysis, FT-IR, PXRD, TG-DSC, and single-crystal X-ray diffraction. Compound1possesses a 2D inorganic-organic alternate arrangement layer structure built from 1D inorganic chains through the piperazine bridge, in which the ligand L−4shows two types of coordination modes reported rarely at the same time. In1, both crystallographic distinct Ba(1) and Ba(2) ions adopt 8-coordination two caps and 9-coordination three caps triangular prism geometry structures, respectively. Compound2possesses a zero-dimensional mononuclear structure with two crystallographic distinct Mg(II) ions. Free metal cations  [MgO6]n2+and uncoordinated anions(L-H2)n2-are joined together by static electric force. Results of photoluminescent measurement indicate three main emission bands centered at 300 nm, 378.5 nm, and 433 nm for1and 302 nm, 378 nm, and 434.5 nm for2(λex=235 nm), respectively. The high energy emissions could be derived from the intraligandπ∗-ntransition stations ofH4L(310 nm and 382 nm,λex=235 nm), while the low energy emission (>400 nm) of1-2may be due to the coordination effect with metal(II) ions.


2015 ◽  
Vol 71 (10) ◽  
pp. 850-855 ◽  
Author(s):  
Hui-Ting Wang

In order to explore new metal coordination polymers and to search for new types of ferroelectrics among hybrid coordination polymers, two manganese dicyanamide complexes, poly[tetramethylammonium [di-μ3-dicyanamido-κ6N1:N3:N5-tri-μ2-dicyanamido-κ6N1:N5-dimanganese(II)]], {[(CH3)4N][Mn2(NCNCN)5]}n, (I), andcatena-poly[bis(butyltriphenylphosphonium) [[(dicyanamido-κN1)manganese(II)]-di-μ2-dicyanamido-κ4N1:N5]], {[(C4H9)(C6H5)3P]2[Mn(NCNCN)4]}n, (II), were synthesized in aqueous solution. In (I), one MnIIcation is octahedrally coordinated by six nitrile N atoms from six anionic dicyanamide (dca) ligands, while the second MnIIcation is coordinated by four nitrile N atoms and two amide N atoms from six anionic dca ligands. Neighbouring MnIIcations are linked together by μ-1,5- and μ-1,3,5-bridging dca anions to form a three-dimensional polymeric structure. The anionic framework exhibits a solvent-accessible void of 289.8 Å3, amounting to 28.0% of the total unit-cell volume. Each of the cavities in the network is occupied by only one tetramethylammonium cation. In (II), each MnIIcation is octahedrally coordinated by six nitrile N atoms from six dca ligands. Neighbouring MnIIcations are linked together by double dca bridges to form a one-dimensional polymeric chain, and C—H...N hydrogen-bonding interactions are involved in the formation of the one-dimensional layer structure.


2019 ◽  
Vol 75 (12) ◽  
pp. 1562-1568
Author(s):  
Yuan-Chun He ◽  
Li-Yuan Xiao ◽  
Zi-Han Yuan ◽  
Jie Zhang ◽  
Yan Wang ◽  
...  

Coordination polymers (CPs) have attracted increasing interest in recent years. In this work, two new CPs, namely poly[[aquabis(2,2′-bipyridine-κ2 N,N′){μ3-5-[(4-carboxylatophenoxy)methyl]benzene-1,3-dicarboxylato-κ4 O 1,O 1′:O 3:O 5}(μ-formato-κ3 O:O,O′)dicadmium(II)] monohydrate], {[Cd2(C16H9O7)(HCO2)(C10H8N2)2(H2O)]·H2O} n (1), and poly[[(2,2′-bipyridine-κ2 N,N′){μ3-5-[(4-carboxylphenoxy)methyl]benzene-1,3-dicarboxylato-κ4 O 1,O 1′:O 3:O 5}manganese(II)] sesquihydrate], {[Mn(C16H10O7)(C10H8N2)]·1.5H2O} n (2), have been prepared using the tricarboxylic acid 5-[(4-carboxyphenoxy)methyl]benzene-1,3-dicarboxylic acid and 2,2′-bipyridine under hydrothermal conditions. CP 1 displays a two-dimensional layer structure which is further extended into a three-dimensional (3D) supramolecular structure via intermolecular π–π interactions, while CP 2 shows a different 3D supramolecular structure extended from one-dimensional ladder chains by intermolecular π–π interactions. In addition, the solid-state luminescence spectra of 1 and 2 were studied at room temperature.


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