A supramolecular 3-D organic-inorganic hybrid structure based on {PMo12} layers arranged in an alternating mode

2015 ◽  
Vol 70 (5) ◽  
pp. 311-316
Author(s):  
Yue Cao ◽  
Kai Yu ◽  
Chun-mei Wang ◽  
Chun-xiao Wang ◽  
Zhan-hua Su ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Room Temperature ◽  
Hybrid Structure ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
Form Complex ◽  
Inorganic Hybrid ◽  
X Ray ◽  
Good Electrocatalytic Activity

AbstractAn organic-inorganic hybrid compound based on {PMo12} layers, [Ag(pz)2]6[PMo12O40]2·3H2O 1 (pz = pyrazole), has been hydrothermally synthesized and characterized by elemental analysis, TG, IR spectroscopy, and single-crystal X-ray diffraction. Two crystallographically independent [PMo12O40]3– clusters are arranged in an AB–AB mode to give two kinds of supramolecular layers. The layers are further connected in a special alternating mode by [Ag(pz)2]+ linkers to form complex 3-D supramolecular network. Compound 1 exhibits good electrocatalytic activity in the reduction of hydrogen peroxide and shows fluorescence in the solid state at room temperature.

The structures and phase transitions in 4-aminopyridinium tetraaquabis(sulfato)iron(III), (C5H7N2)[FeIII(H2O)4(SO4)2]

2019 ◽  
Vol 75 (6) ◽  
pp. 1144-1151
Author(s):  
Tamara J. Bednarchuk ◽  
Wolfgang Hornfeck ◽  
Vasyl Kinzhybalo ◽  
Zhengyang Zhou ◽  
Michal Dušek ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Single Crystal ◽  
Room Temperature ◽  
Variable Temperature ◽  
Temperature Phase ◽  
X Ray Diffraction ◽  
Scanning Calorimetry ◽  
Hybrid Compound ◽  
Space Group ◽  
X Ray

The organic–inorganic hybrid compound 4-aminopyridinium tetraaquabis(sulfato)iron(III), (C5H7N2)[FeIII(H2O)4(SO4)2] (4apFeS), was obtained by slow evaporation of the solvent at room temperature and characterized by single-crystal X-ray diffraction in the temperature range from 290 to 80 K. Differential scanning calorimetry revealed that the title compound undergoes a sequence of three reversible phase transitions, which has been verified by variable-temperature X-ray diffraction analysis during cooling–heating cycles over the temperature ranges 290–100–290 K. In the room-temperature phase (I), space group C2/c, oxygen atoms from the closest Fe-atom environment (octahedral) were disordered over two equivalent positions around a twofold axis. Two intermediate phases (II), (III) were solved and refined as incommensurately modulated structures, employing the superspace formalism applied to single-crystal X-ray diffraction data. Both structures can be described in the (3+1)-dimensional monoclinic X2/c(α,0,γ)0s superspace group (where X is ½, ½, 0, ½) with modulation wavevectors q = (0.2943, 0, 0.5640) and q = (0.3366, 0, 0.5544) for phases (II) and (III), respectively. The completely ordered low-temperature phase (IV) was refined with the twinning model in the triclinic P{\overline 1} space group, revealing the existence of two domains. The dynamics of the disordered anionic substructure in the 4apFeS crystal seems to play an essential role in the phase transition mechanisms. The discrete organic moieties were found to be fully ordered even at room temperature.

scholarly journals Diffusion Of Indigo Molecules Inside The Palygorskite Clay Channels

2011 ◽  
Vol 1319 ◽  
Author(s):  
Catherine Dejoie ◽  
Pauline Martinetto ◽  
Eric Dooryhée ◽  
Ross Brown ◽  
Sylvie Blanc ◽  
...  
Keyword(s):  
Room Temperature ◽  
Heating Process ◽  
Microscopic Structure ◽  
X Ray Diffraction ◽  
Inorganic Hybrid ◽  
X Ray ◽  
Open Questions ◽  
Maya Blue ◽  
Palygorskite Clay ◽  
Unique Association

ABSTRACTThe search for durable dyes led several past civilizations to develop artificial pigments. Maya Blue (MB), manufactured in pre-Columbian Mesoamerica, is one of the best known examples of an organic-inorganic hybrid material. Its durability is due to the unique association of indigo molecule and palygorskite, a particular fibrous clay occurring in Yucatan. Despite 50 years of sustained interest, the microscopic structure of MB and its relation to the durability remain open questions. Combining new thermogravimetric and synchrotron X-ray diffraction analyses, we show that indigo molecules can diffuse into the channel of the palygorskite during the heating process, replacing zeolitic water and stabilizing the room temperature phases of the clay.

Synthesis and Crystal Structure of a Cadmium(II) Complex with 2-(4΄-Chlorine-Benzoyl)-Benzoic Acid and 1,10-Phenanthroline

2011 ◽  
Vol 339 ◽  
pp. 313-316
Author(s):  
Xiu Mei Li ◽  
Zhi Tao Wang ◽  
Qing Wei Wang
Keyword(s):  
Benzoic Acid ◽  
Room Temperature ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
Organic Complex ◽  
Orthorhombic Space Group ◽  
Synthesis And Crystal Structure ◽  
X Ray ◽  
Metal Organic Complex ◽  
Metal Organic

A new metal-organic complex Cd2(cbba)4(phen)2 (Hcbba = 2-(4΄-chlorine-benzoyl)- benzoic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, fluorescence spectrum and single-crystal X-ray diffraction. The compound crystallizes in orthorhombic, space group Pbcn with a = 12.0976(4), b = 18.0925(6), c = 31.6829(10) Å, V = 6934.6(4) Å3, C80H48Cd2Cl4N4O12, Mr = 1623.82, Dc = 1.555 g/cm3, μ(MoKα) = 0.8365 mm1, F(000) = 3264, Z = 4, the final R = 0.0396 and wR = 0.0960 for 5372 observed reflections (I > 2(I)). It exhibits a 3D supramolecular network through π-π interactions and shows green luminescent property at room temperature.

Synthesis, Structure Characterization and Photocatalytic Property of a New 3-D Polyoxovanadate-Based Organic-Inorganic Hybrid Compound

2014 ◽  
Vol 997 ◽  
pp. 260-263 ◽  
Author(s):  
Ya Bing Liu ◽  
Peng Yu
Keyword(s):  
Transition Metal ◽  
Elemental Analysis ◽  
Rhodamine B ◽  
Photocatalytic Property ◽  
Building Blocks ◽  
Structure Characterization ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
X Ray

A new polyoxovanadates-based organic-inorganic hybrid compound, [Cu(en)2]2[VV6VIV4O25] (1) has been hydrothermally synthesized and structurally characterized by the elemental analysis, and single crystal X-ray diffraction. Compound 1 consists of [Cu(en)2]2+transition metal coordination fragment and the [VV6VIV4O25]4-building blocks, which are linked together via covalently-bonding interactions to form a new 3-D networks. The degradation of rhodamine B (RhB) under UV-vis irradiation with 1 as the heterogeneous photocatalyst has been investigated, showing a good photocatalytic property of 1 for RhB degradation.

scholarly journals The synthesis, structure and photoluminescence property of a novel 3D supramolecular compound based on mixed ligands of 8-hydroxy-quionline-5-sulfonate and ethylenediamine

2011 ◽  
Vol 76 (11) ◽  
pp. 1497-1504 ◽  
Author(s):  
Ying Wang ◽  
Changfu Zhuang ◽  
Chunhua Wu ◽  
Jiayan Zhang ◽  
Wang Li ◽  
...  
Keyword(s):  
Room Temperature ◽  
Three Dimensional ◽  
Photoluminescence Property ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
X Ray ◽  
Mixed Ligands ◽  
Structure Solution ◽  
Hydroxy Quinoline ◽  
Hybrid Coordination

A new organic-inorganic hybrid coordination compound ZnQS (en)?2H2O (1) in which two different organic ligands, ethylenediamine (en) and 8-hydroxy-quinoline-5-sulfonic acid (H2QS) coordinate with zinc ions, has been synthesized via the evaporation method and characterized by single crystal X-ray diffraction analysis, IR spectroscopy and thermogravimetric analysis (TGA). The structure solution showed that compound 1 displays a three-dimensional supramolecular network by synergic linkage of hydrogen and coordinated bonds. Moreover, compound 1 exhibits intense photoluminescence at 513 nm excited at 396 nm in the solid state at room temperature.

A Silver(I) Coordination Polymer Based on a Schiff Base Ligand: Synthesis, Crystal Structure and Luminescence Properties

2013 ◽  
Vol 68 (3) ◽  
pp. 284-288 ◽  
Author(s):  
Lin Yu Jin ◽  
Meng Meng Li ◽  
Dong Bin Dang ◽  
Yan Bai ◽  
Yan Ning Zheng
Keyword(s):  
Coordination Polymer ◽  
Room Temperature ◽  
Three Dimensional ◽  
Chain Structure ◽  
Luminescence Properties ◽  
Tridentate Ligand ◽  
Supramolecular Network ◽  
Zigzag Chain ◽  
X Ray Diffraction ◽  
X Ray

A new Ag(I) coordination polymer [AgL(NO3)]n 1 (L=4-(pyridine-2-yl)methyleneamino-1,2,4- trizaole) has been synthesized and characterized by IR spectroscopy, elemental analysis, powder and single-crystal X-ray diffraction. The Ag(I) atom has a seesaw environment with an N3O donor set from three N atoms of two ligands and one O atom of one NO-3 anion. Each twisted tridentate ligand is bound to two silver centers, and each silver atom is coordinated by two ligands thereby generating a zigzag chain structure. The chains interact with each other featuring a three-dimensional supramolecular network through multiple weak C-H···π interactions and C-H···O hydrogen bonds. The luminescence properties of the polymer 1 were investigated in the solid state at room temperature.

Thermoelectric behavior of PEDOT:PSS/CNT/graphene composites

2018 ◽  
Vol 38 (4) ◽  
pp. 381-389 ◽  
Author(s):  
Yan-Xin Liu ◽  
Hai-Hui Liu ◽  
Jian-Ping Wang ◽  
Xing-Xiang Zhang
Keyword(s):  
Power Factor ◽  
Photoelectron Spectroscopy ◽  
Room Temperature ◽  
Hybrid Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Styrene Sulfonate ◽  
Transmission Electron ◽  
Multi Walled Carbon Nanotube

AbstractHybrids of poly(3,4-ethylenedioxythiophene) (PEDOT):poly(4-styrene sulfonate) (PSS)/multi-walled carbon nanotube (MWCNT)/graphene (P/M/G), which have high electrical conductivity and low thermal conductivity, were successfully prepared in aqueous solution throughin situpolymerization of 3,4-ethylenedioxythiophene (EDOT) monomers in the presence of poly(sodium 4-styrene sulfonate) (PSSNa). Meanwhile, the composites were characterized by Raman spectroscopy, infrared (IR) spectroscopy, X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and transmission electron microscopy. Thermoelectric properties of the samples were measured at room temperature and 50°C. Compared with pristine PEDOT:PSS (P), PEDOT:PSS/MWCNT (P/M) and PEDOT:PSS/graphene (P/G), the power factor of P/M/G composites was significantly improved, whatever the temperature. It increased from 0.061 μW/mK2to 0.105 μW/mK2at room temperature and from 0.070 μW/mK2to 0.142 μW/mK2at 50°C, meaning 72% and 103% enhancement, respectively. The increased power factor is attributed to the synergic effects of MWCNT and graphene, a hybrid structure with excellent electronic coupling and more electric channels.

scholarly journals New Quasi-One-Dimensional Organic-Inorganic Hybrid Material: 1,3-Bis(4-piperidinium)propane Pentachlorobismuthate(III) Synthesis, Crystal Structure, and Spectroscopic Studies

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Hela Ferjani ◽  
Habib Boughzala
Keyword(s):  
Crystal Structure ◽  
Spectroscopic Studies ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
One Dimensional ◽  
X Ray ◽  
Compound C ◽  
Semiempirical Parameter ◽  
Inorganic Layers

The organic-inorganic hybrid compound (C13H28N2) BiCl5 was synthesized by solvothermal method. The crystal structure was solved by single-crystal X-ray diffraction. The compound crystallizes in the orthorhombic system space group Cmc21 with a=15.826(4) Å, b=18.746(6) Å, c=7.470(3) Å, and Z=4. The crystal structure was refined down to R=0.019. It consists of corrugated layers of [BiCl5]2− chains, separated by organic [H2TMDP]2+ cations (TMDP=1,3-Bis(4-piperidyl)propane = C13H26N2). The crystal cohesion is achieved by hydrogen bonds N–H⋯Cl joining the organic and inorganic layers. The influence of the organic cations' flexibility is discussed. Raman and infrared spectra of the title compound were recorded in the range of 50–400 and 400–4000 cm−1, respectively. Semiempirical parameter model three (PM3) method has been performed to derive the calculated IR spectrum. The crystal shape morphology was simulated using the Bravais-Friedel and Donnay-Harker model.

Synthesis, Structure and Photocatalytic Property of [Ni(en)2]{[Ni(en)2]2[Mo8V8O40(VO4)]}[(NH2)2(C2H4)2NH]2·2H2O

2014 ◽  
Vol 1004-1005 ◽  
pp. 376-379
Author(s):  
Ya Bing Liu ◽  
Li Guang Xiao
Keyword(s):  
Methylene Blue ◽  
Photocatalytic Property ◽  
Building Blocks ◽  
Chemical Formula ◽  
X Ray Diffraction ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
X Ray ◽  
Metal Organic ◽  
Supramolecular Networks

A 1-D chain-like POM - based organic-inorganic hybrid compound with the chemical formula of [Ni (en)2]{[Ni (en)2]2[Mo8V8O40(VO4)]}[(NH2)2(C2H4)2NH]2·2H2O (en = ethylenediamine) (1) has been hydrothermally synthesized and structurally characterized by the elemental analysis, and single crystal X-ray diffraction. Compound 1 consists of the bi-supported tetra-capped Keggin-type {[Ni (en)2]2[Mo8V8O40(VO4)]}2-building blocks and [Ni (en)2]2+metal organic cationic moieties are connected together to form 1-D chain through covelent-bonding interactions, which is further linked into 3-D supramolecular networks . The degradation of methylene blue (MB) under UV irradiation with 1 as the heterogeneous photocatalyst has been investigated, showing a good photocatalytic property of 1 for MB degradation.

Synthesis, Crystal Structures and Fluorescence Properties of Two d10 Metal Coordination Polymers with Flexible Bis(benzimidazolyl)alkane Ligands

2013 ◽  
Vol 68 (3) ◽  
pp. 250-256 ◽  
Author(s):  
Jun-Wen Wang ◽  
Guang-Hua Cui ◽  
Li Qin ◽  
Shu-Lin Xiao
Keyword(s):  
Coordination Polymers ◽  
Room Temperature ◽  
Chain Structure ◽  
Fluorescence Properties ◽  
Metal Coordination ◽  
Supramolecular Network ◽  
X Ray Diffraction ◽  
X Ray ◽  
D10 Metal ◽  
Metal Coordination Polymers

Two d10 metal coordination polymers with bis-benzimidazole ligands, [(Ag(L1))·NO3·4H2O]n (1) and [Cu2(L2)(CN)2]n (2) [L1 =1,4-bis(benzimidazol-1-yl)butane, L2 =1,4-bis(5,6-dimethylbenzimidazol- 1-yl)butane] have been synthesized hydrothermally and characterized by elemental analysis, IR spectroscopy, thermogravimetric (TG) analysis and single-crystal X-ray diffraction. Compound 1 features a ribbon-like chain structure bridged by L1 ligands, and is ultimately extended into a 2D supramolecular network through two kinds of π-π stacking interactions. Compound 2 displays a (6,3) wave-like layer in which [Cu6(μ-CN)6(L2)2]n double chains are interconnected by pairs of L2 bridges. The fluorescence properties of the compounds in the solid state at room temperature were investigated.

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