Coordination polymers with Co(II) sulfate layers linked by alkanediamines of varying chain length

2005 ◽  
Vol 83 (6-7) ◽  
pp. 668-673 ◽  
Author(s):  
J N Behera ◽  
C NR Rao
Keyword(s):  
General Formula ◽  
Chain Length ◽  
Coordination Polymers ◽  
Solvothermal Synthesis ◽  
Cobalt Sulfate ◽  
Ferromagnetic Interaction ◽  
Solvothermal Conditions ◽  
Weak Ferromagnetic

Coordination polymers of the general formula Co[HN(CH2)nNH]SO4 possessing layers formed by CoO4N2 octahedra and SO4 tetrahedra have been synthesized under solvothermal conditions. The layers, linked by diaminoalkanes, cause apertures of varying widths, which are determined by the chain length of the amine. These materials appear to possess weak ferromagnetic interaction at low temperatures.Key words: coordination polymers, cobalt sulfate, solvothermal synthesis.

Two-dimensional lanthanide(III) coordination polymers: solvothermal synthesis, crystal structure, and stability

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Runmei Ding ◽  
Zixin He ◽  
Meilin Wang ◽  
Danian Tian ◽  
Peipei Cen
Keyword(s):  
Crystal Structure ◽  
Coordination Polymers ◽  
Solvothermal Synthesis ◽  
Analysis Data ◽  
Water Stability ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Triclinic Space Group ◽  
X Ray ◽  
Solvothermal Conditions

AbstractBased on 2-(4-pyridyl)-terephthalate (H2pta) and oxalate ligands, two new lanthanide-containing coordination polymers (CPs), [Tb(pta)(C2O4)0.5(H2O)2)]·2H2O (1) and [Sm(pta)(C2O4)0.5(H2O)2)]·2H2O (2), have been synthesized under solvothermal conditions. The structures of both 1 and 2 have been determined by single-crystal X-ray diffraction. Infrared, elemental analysis, powder X-ray diffraction and thermogravimetric analysis data are also presented. The crystals of 1 and 2 exhibit isostructural layer-like networks, crystallizing in the triclinic space group P$‾{1}$. The layers are further stabilized and associated into 3D architectures through hydrogen bonding. Remarkably, the CPs 1 and 2 exhibit excellent water stability and remarkable thermostability with thermal decomposition temperatures of more than 420 °C.

Five new coordination polymers with a Y-shaped N-heterocyclic carboxylic acid: structural diversity, bifunctional luminescence sensing and magnetic properties

CrystEngComm ◽  
2019 ◽  
Vol 21 (38) ◽  
pp. 5767-5778 ◽  
Author(s):  
Jinxia Liang ◽  
Jie Zhang ◽  
Jinfang Liang ◽  
Lijun Zhai ◽  
Haonan Wu ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Carboxylic Acid ◽  
Coordination Polymers ◽  
Structural Diversity ◽  
Antiferromagnetic Interaction ◽  
Ferromagnetic Interaction ◽  
Solvothermal Conditions

Five novel CPs have been synthesized under solvothermal conditions. The results show that 1 and 2 present high sensing ability for NACs and Fe3+ ions, and there exist ferromagnetic interaction in 3/4 and antiferromagnetic interaction in 5.

Four coordination polymers based on dinuclear and trinuclear units with a new multifunctional pyridyl-dicarboxylate ligand: luminescence and magnetic properties

CrystEngComm ◽  
2017 ◽  
Vol 19 (38) ◽  
pp. 5755-5763 ◽  
Author(s):  
Feng Liu ◽  
Wei Gao ◽  
Xiu-Mei Zhang ◽  
Jie-Ping Liu ◽  
En-Qing Gao
Keyword(s):  
Magnetic Properties ◽  
Coordination Polymers ◽  
X Ray ◽  
X Ray Crystallography ◽  
Dicarboxylate Ligand ◽  
Solvothermal Conditions

Four coordination polymers with a new pyridyl-dicarboxylate ligand were synthesized under solvothermal conditions and studied by means of X-ray crystallography, topological analyses, luminescence and magnetic analyses.

Direct insight into crystallization and stability of hybrid perovskite CH3NH3PbI3via solvothermal synthesis

2015 ◽  
Vol 3 (31) ◽  
pp. 15854-15857 ◽  
Author(s):  
Ying Chen ◽  
Shuang Yang ◽  
Xiao Chen ◽  
Yi Chu Zheng ◽  
Yu Hou ◽  
...  
Keyword(s):  
Single Crystals ◽  
Solvothermal Synthesis ◽  
One Pot ◽  
Hybrid Perovskite ◽  
First Time ◽  
Solvothermal Conditions ◽  
Insight Into

We report a one-pot solvothermal approach to synthesize cuboid shaped CH3NH3PbI3 single crystals. Growth and dissolution phenomena of perovskite crystals were discovered for the first time under solvothermal conditions.

scholarly journals V2O2F4(H2O)2·H2O: a new V4+layer structure related to VOF3

2016 ◽  
Vol 72 (1) ◽  
pp. 80-83 ◽  
Author(s):  
Cameron Black ◽  
Philip Lightfoot
Keyword(s):  
Ionic Liquids ◽  
Title Compound ◽  
Solvothermal Synthesis ◽  
Layer Structure ◽  
Three Dimensional ◽  
Water Molecules ◽  
Frustrated Magnets ◽  
Two Dimensional ◽  
Triangular Lattices ◽  
Solvothermal Conditions

VIVoxyfluorides are of interest as frustrated magnets. The successful synthesis of two-dimensionally connected vanadium(IV) oxyfluoride structures generally requires the use of ionic liquids as solvents. During solvothermal synthesis experiments aimed at producing two- and three-dimensional vanadium(IV) selenites with triangular lattices, the title compound, diaquatetra-μ-fluorido-dioxidodivanadium(IV) monohydrate, V2O2F4(H2O)2·H2O, was discovered and features a new infinite V4+-containing two-dimensional layer comprised of fluorine-bridged corner- and edge-sharing VOF4(H2O) octahedral building units. The synthesis was carried out under solvothermal conditions. The V4+centre exhibits a typical off-centring, with a short V=O bond and an elongatedtrans-V—F bond. Hydrogen-bonded water molecules occur between the layers. The structure is related to previously reported vanadium oxyfluoride structures, in particular, the same layer topology is seen in VOF3.

scholarly journals Weak Ferromagnetic Interaction at the Surface of the Ferrimagnetic Rb2Co4[Fe(CN)6]3.3·11H2O Photoexcited State

2018 ◽  
Vol 57 (13) ◽  
pp. 7610-7619 ◽  
Author(s):  
Sadaf Fatima Jafri ◽  
Marie-Anne Arrio ◽  
Amélie Bordage ◽  
Robinson Moulin ◽  
Amélie Juhin ◽  
...  
Keyword(s):  
Ferromagnetic Interaction ◽  
Weak Ferromagnetic ◽  
Photoexcited State

Solvothermal Synthesis and Crystal Structure Determination of Tris- (ethyleneamine-ammonium) Tetraselenoantimonat: Non-Centrosymmetry Mediated by an Extended Unusual N-H···N Hydrogen Bonded Network?

1998 ◽  
Vol 53 (10) ◽  
pp. 1144-1148 ◽  
Author(s):  
Frank Wendland ◽  
Christian Näther ◽  
Michael Schur ◽  
Wolfgang Bensch
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Solvothermal Synthesis ◽  
Amino Nitrogen ◽  
X Ray Diffraction ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Ammonium Hydrogen ◽  
Solvothermal Conditions

AbstractThe title compound has been synthesized under solvothermal conditions by the reaction of elemental chromium, antimony and selenium in a solution of 40% 1,2-ethanediamine (en) in methanol. The crystal structure consists of tetrahedral SbSe43- anions which are connected by monoprotonated 1,2-ethanediamine (enH+) cations via N-H--Se hydrogen bonding. The enH+ cations are joined via strong N-H -N hydrogen bonds between the ammonium hydrogen and the amino nitrogen atom forming four distinct chains, each built up of three crystallographically independent enH+ cations. Two of these chains are running parallel to [100], the other two are parallel to [010]. Based on this arrangement different centrosymmetric or non-centrosymmetric hydrogen bonding patterns are possible, but only in one chain the sequence of NH2 and NH3+ groups was determined by X-ray diffraction

Bis(ditertiaryphosphine) complexes of rhodium(I). Synthesis, spectroscopy, and activity for catalytic hydrogenation

1979 ◽  
Vol 57 (2) ◽  
pp. 180-187 ◽  
Author(s):  
Brian R. James ◽  
Devinder Mahajan
Keyword(s):  
Solid State ◽  
Spectral Data ◽  
General Formula ◽  
Chain Length ◽  
Catalytic Hydrogenation ◽  
Kinetic Data ◽  
High Field ◽  
Polar Solvents ◽  
Chloro Complexes ◽  
Field Shift

Rhodium(I)–bis(ditertiaryphosphine) complexes of the general formula [Formula: see text]n = 1–4, and (+)-diop (diop = 2,3-O-isopropylidene 2,3-dihydroxy-1,4-bis(diphenylphosphino)butane) have been prepared by treating [Rh(cyclooctene)2Cl]2 with the appropriate ditertiaryphosphine. The n = 1 and n = 4 and diop species are five-coordinate in the solid state and in non-polar solvents, while the n = 2 and 3 species contain ionic chloride. The cationic complexes [Formula: see text] were prepared from the [Formula: see text] species by adding AgX (X = SbF6, PF6, BF4). Reaction of the chloro complexes with borohydride has yielded the hydrides, [Formula: see text] for the n = 2 and 3 diphosphines, and for (+)-diop. 1H and 31P nmr, as well as visible spectral data, are presented: a solvent-dependent deshielding of ortho protons of the phenyl groups is observed in some of the complexes, and the ligand CH2 protons are coupled to the rhodium in the Rh(Ph2PCH2PPh2)2+ cation; the P atom in this bis(diphenylphosphino) ligand shows an usual high field shift on coordination to rhodium.Preliminary kinetic data for catalytic hydrogenation of methylenesuccinic acid show that the cationic and hydrido complexes are more active than the corresponding chloro complexes, and that activity generally increases with increasing chain length of the diphosphine.

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