Cobalt diphosphonate with a new double chain structure exhibiting field-induced magnetic transition

2007 ◽  
pp. 4681 ◽  
Author(s):  
Zai-Chao Zhang ◽  
Song Gao ◽  
Li-Min Zheng
Keyword(s):  
Magnetic Transition ◽  
Chain Structure ◽  
Double Chain

Programming cell communications with pH-responsive DNA nanodevices

2021 ◽  
Author(s):  
Junjun Hou ◽  
Shitai Zhu ◽  
Ziwei Zhao ◽  
Jianlei Shen ◽  
Jie Chao ◽  
...  
Keyword(s):  
Cell Surface ◽  
Chain Structure ◽  
Ph Responsive ◽  
Double Chain ◽  
Physiological Conditions

The DNA nanoswitchs on cell surface could respond to the changes of pH under physiological conditions by switching from a three-chain structure to a double-chain structure, thus connecting another set...

Poly[bis[[4-(1H-1,3,7,8-tetraazacyclopenta[l]phenanthren-2-yl)phenol-κ2 N 7,N 8]manganese(II)]-di-μ3-benzene-1,3-dicarboxylato-κ4 O:O′:O′′,O′′′]

2006 ◽  
Vol 62 (7) ◽  
pp. m1686-m1688 ◽  
Author(s):  
Guang-Bo Che
Keyword(s):  
Supramolecular Structure ◽  
Chain Structure ◽  
Title Complex ◽  
Two Dimensional ◽  
Double Chain ◽  
Phenanthroline Ligand

In the title complex, [Mn2(C8H4O4)2(C19H12N4O)2] n , the MnII atom is six-coordinated by two N atoms from the substituted phenanthroline ligand and four O atoms from three different benzene-1,3-dicarboxylate (1,3-BDC) ligands. Adjacent MnII atoms are bridged by the 1,3-BDC ligands to form a double-chain structure which, in turn, is linked to neighboring double chains via π–π contacts to form a two-dimensional supramolecular structure.

scholarly journals 2-(2-Hydroxy-3-methoxyphenyl)-1H-benzimidazol-3-ium perchlorate

2012 ◽  
Vol 68 (6) ◽  
pp. o1920-o1920
Author(s):  
Chuan Chen ◽  
Hong-Xing Li ◽  
Guang-Feng Hou ◽  
Guang-Ming Li
Keyword(s):  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Chain Structure ◽  
Double Chain ◽  
Intramolecular Hydrogen Bonds ◽  
Ring Systems ◽  
Intramolecular Hydrogen ◽  
Molecular Salt

In the title molecular salt, C14H13N2O2 +·ClO4 −, the ring systems in the cation are almost coplanar [dihedral angle = 5.53 (13)°]. Intramolecular N—H...O and O—H...O hydrogen bonds generate S(6) and S(5) rings, respectively. In the crystal, the two H atoms involved in the intramolecular hydrogen bonds also participate in intermolecular links to acceptor O atoms of the perchlorate anions. A simple intermolecular N—H...O bond also occurs. Together, these form a double-chain structure along [101].

A copper(II) chain compound with hydrogenphosphate bridges organized in a double-chain structure. Synthesis, structure and magnetic properties of [Cu(1,10-phenanthroline)(μ-HPO4)(H2O)2]n

2005 ◽  
Vol 8 (4) ◽  
pp. 335-338 ◽  
Author(s):  
Sujittra Youngme ◽  
Pongthipun Phuengphai ◽  
Chaveng Pakawatchai ◽  
Gerard A. van Albada ◽  
Stefania Tanase ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Chain Structure ◽  
Double Chain ◽  
Structure Synthesis ◽  
Chain Compound

Double-Chain Structure of (pipzH2) [MnF2(HPO4)(H2O)] (H2PO4).

ChemInform ◽  
2004 ◽  
Vol 35 (45) ◽  
Author(s):  
Ronald Stief ◽  
Werner Massa
Keyword(s):  
Chain Structure ◽  
Double Chain

A 3D supramolecular architecture based on 2,2′-oxybis(benzoic acid) and trans-1,2-bis(4-pyridyl)ethylene as ligands for Co(II)

2017 ◽  
Vol 72 (6) ◽  
pp. 397-401 ◽  
Author(s):  
Long Tang ◽  
Juan Zhang ◽  
Xiao-Xia Liu ◽  
Ji-Jiang Wang ◽  
Feng Fu
Keyword(s):  
Hydrogen Bonds ◽  
Benzoic Acid ◽  
Chain Structure ◽  
Polymeric Chain ◽  
Supramolecular Architecture ◽  
X Ray Diffraction ◽  
Double Chain ◽  
Hydrothermal Conditions ◽  
X Ray ◽  
Mixed Ligands

AbstractThe reaction of CoCl2·6H2O with mixed ligands of 2,2′-oxybis(benzoic acid) (2,2′-H2oba) and trans-1,2-bis(4-pyridyl)ethylene (bpe) under hydrothermal conditions produced a new 3D cobalt(II) supramolecular architecture {[Co(oba)(bpe)(H2O)]·1/2bpe}n (1), which was structurally characterized by elemental analysis, infrared spectroscopy, thermogravimetric analyses, and single-crystal X-ray diffraction. The results show that the Co(II) ions are connected to form an infinite polymeric chain by bpe ligands in complex 1. Due to strong intermolecular O–H···O hydrogen bonds, the adjacent chains are connected to generate a double-chain structure. These double chains are joined by O–H···N hydrogen bonding to produce a 2D supramolecular architecture. Furthermore, through intermolecular C–H···O hydrogen bonds, the layers are linked into a 3D supramolecular structure. Magnetic susceptibility measurements have indicated that complex 1 shows weak antiferromagnetic interactions between adjacent Co(II) ions.

Microwave synthesis of a blue luminescent silver(I) coordination polymer with a rigid tris-triazole ligand

2020 ◽  
Vol 75 (6-7) ◽  
pp. 545-552
Author(s):  
Juan Shi ◽  
Zhen-Xiang Xia ◽  
Sheng-Chun Chen ◽  
Ming-Yang He ◽  
Qun Chen
Keyword(s):  
Coordination Polymer ◽  
Room Temperature ◽  
Hydrothermal Reaction ◽  
Chain Structure ◽  
X Ray Diffraction ◽  
Double Chain ◽  
X Ray ◽  
Triazole Ligand ◽  
Hydrolysis Of

AbstractMicrowave-assisted hydrothermal reaction of 2-fluoro-3,5,6-tri(1H-1,2,4-triazol-1-yl)-1,4-benzenedicarbonitrile (L1) with silver(I) nitrate yields a coordination polymer [Ag3(L2)2(NO3)]n (1), in which the L2 ligand (HL2 = 2-hydroxy-3,5,6-tri(1H-1,2,4-triazol-1-yl)terephthalonitrile) is obtained by in situ ligand transformation from the L1 precursor. HL2 monohydrate has also been isolated by the microwave-mediated hydrolysis of L1 and structurally characterized. Single-crystal X-ray diffraction reveals that HL2 monohydrate comprises a zwitterionic HL2 moiety, while complex 1 displays an infinite L2-bridged double-chain structure. Given that the HL2 molecule has a large conjugated π system, complex 1 exhibits strong blue luminescence in the solid state at room temperature.

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