Growth striations in KBr(PbI2) single crystals grown from aqueous solution

1976 ◽  
Vol 9 (17) ◽  
pp. 2511-2515 ◽  
Author(s):  
A R Patel ◽  
B P Agarwal
Keyword(s):  
Aqueous Solution ◽  
Single Crystals

Dissolution of Bicalutamide Single Crystals in Aqueous Solution: Significance of Evolving Topography in Accelerating Face-Specific Kinetics

2017 ◽  
Vol 17 (10) ◽  
pp. 5108-5116 ◽  
Author(s):  
Faduma M. Maddar ◽  
Maria Adobes-Vidal ◽  
Leslie P. Hughes ◽  
Stephen A. C. Wren ◽  
Patrick R. Unwin
Keyword(s):  
Aqueous Solution ◽  
Single Crystals

Na6[TeMo6O24]·22 H2O – A Layered Heteropoly Compound with the Chain-Like Polycation {Na3(Η2O)1111}n3n+

1993 ◽  
Vol 48 (4) ◽  
pp. 404-408 ◽  
Author(s):  
Christian Robl ◽  
Mona Frost
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Oxygen Atom ◽  
Single Crystals ◽  
Solution Space ◽  
Heteropoly Compound ◽  
Water Molecules ◽  
Space Group ◽  
The Third ◽  
Bonding Mode

Colourless triclinic single crystals of Na6[TeMo6O24] · 22 H2O were grown from aqueous solution (space group P 1, a = 1030.89(9), b = 1056.7(1), c = 1106.32(9) pm, α = 90.120(7), β = 115.220(6), γ = 105.195(7), Ζ = 1, 295 Κ, 336 parameters, 3181 reflections, Rg = 0.0186). There are three crystallographically independent Na+ cations. Two of them are coordinated octahedrally by water molecules only. The third Na+ cation is bound to five H2O and one oxygen atom (O(4)) belonging to the Anderson-Evans type anion [TeMo6O24]6-. The sodium-centered coordination octahedra are linked by common edges exclusively formed by water molecules to yield chain-like polycations {Na3(H2O)11}n,3n+ which are bound by the Na(1)-O(4) contact to the anions situated on crystallographic centers of inversion forming a layer-like arrangement. Further connections between the polycations and the [TeMo6O24]6- anions are established by hydrogen bonds involving all the oxygen atoms of the anion except O(4) as almost equivalent proton acceptors regardless of their bonding mode to Te or Mo.

scholarly journals Aqueous solution growth at 200 °C and characterizations of pure, 17O- or D-based herbertsmithite ZnxCu4-x(OH)6Cl2 single crystals

2020 ◽  
Vol 531 ◽  
pp. 125372 ◽  
Author(s):  
Matias Velazquez ◽  
Fabrice Bert ◽  
Philippe Mendels ◽  
Dominique Denux ◽  
Philippe Veber ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Single Crystals ◽  
Solution Growth

scholarly journals Neue Koordinationspolymere mit Acetylendicarboxylat als verbrückenden und Pyridin als terminierenden Liganden / New Coordination Polymers with Acetylenedicarboxylate as Bridging and Pyridine as Terminating Ligands

2009 ◽  
Vol 64 (10) ◽  
pp. 1093-1097 ◽  
Author(s):  
Irena Stein ◽  
Uwe Ruschewitz
Keyword(s):  
Aqueous Solution ◽  
Hydrogen Bonds ◽  
Single Crystals ◽  
Coordination Polymers ◽  
Metal Salt ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Aromatic Stacking ◽  
Pyridine Ligands ◽  
Acetylenedicarboxylic Acid

By slow diffusion of pyridine (py) into an aqueous solution containing the respective metal salt and acetylenedicarboxylic acid (H2ADC), single crystals of coordination polymers of composition 1∞[MII(H2O)2(py)2ADC] with MII = Zn (1) and Cd (2) were obtained. The crystal structures consist of octahedral MIIN2O4 units, which are connected to chains via acetylenedicarboxylate dianions. Hydrogen bonds between O atoms of the dianions and of the water molecules lead to the formation of layers perpendicular to [010]. The structure is further held together by weak aromatic stacking interactions between the pyridine ligands.

scholarly journals Cu2[Cu(H2O)4][(CH2)4(NH3)2][C6H2(COO)4]2·4H2O — A Three-Dimensional Coordination Polymer with Negativ Excess Charge and Channel-like Voids

2019 ◽  
Author(s):  
Roberto Köferstein
Keyword(s):  
Aqueous Solution ◽  
Coordination Polymer ◽  
Single Crystals ◽  
Three Dimensional ◽  
Excess Charge ◽  
Ferromagnetic Coupling ◽  
Space Group ◽  
Exothermic Decomposition ◽  
Thermoanalytical Measurements

Triclinic single crystals of Cu2[Cu(H2O)4][(CH2)4(NH3)2][C6H2(COO)4]2·4H2O have beenprepared in aqueous solution at 55 °C. Space group P-1 (no. 2), a = 799.73(7), b = 977.43(8),c = 1086.27(9) pm, α = 87.194(7), β = 84.679(7), γ = 74.744(6)°, V = 0.81540(12) nm3, Z = 1.There are two unique Cu2+ with CN 4+1 (Cu(1)) and CN 4+2 (Cu(2)), respectively. The Cu-Odistances range from 197.4(2) to 214.9(2) pm (Cu(1)) and 191.6(2) to 240.1(4) pm (Cu(2)).There is a short Cu(1)-Cu(1) contact of 267.02(6) pm. A three-dimensional coordinationpolymer with negative excess charge and channel-like voids extending parallel to [-110] ismade up by Cu2+ and [C6H2(COO)4]4-. These voids accomodate [(CH2)4(NH3)2]2+ and watermolecules, which are not coordinated to Cu2+. Thermoanalytical measurements in airindicated a step-wise loss of water of crystallization commencing at 63 °C, which is finishedat approx. 250 °C followed by an exothermic decomposition yielding CuO. The Cu(1) pairsshow anti-ferromagnetic coupling.

Large γ-CuI semiconductor single crystal growth by a temperature reduction method from an NH4I aqueous solution

CrystEngComm ◽  
2015 ◽  
Vol 17 (4) ◽  
pp. 862-867 ◽  
Author(s):  
Yangyang Lv ◽  
Zhihuang Xu ◽  
Liwang Ye ◽  
Zhaojun Zhang ◽  
Genbo Su ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Crystal Growth ◽  
Aqueous Solutions ◽  
Single Crystals ◽  
Reduction Method ◽  
Single Crystal Growth ◽  
Temperature Reduction ◽  
P Type ◽  
Semiconductor Single Crystal ◽  
Type Conduction

Transparent, centimeter-sized γ-CuI single crystals with p-type conduction were successfully obtained from NH4I aqueous solutions by the temperature reduction method.

scholarly journals [Mn(H2O)2]4[HNC5H4(COO)]2[C6H2(COO)4]2·4H2O — A Three-dimensional Coordination Polymer with Guest Water Molecules in Channel-like Voids

2019 ◽  
Author(s):  
Roberto Köferstein
Keyword(s):  
Aqueous Solution ◽  
Thermogravimetric Analysis ◽  
Coordination Polymer ◽  
Oxygen Atom ◽  
Single Crystals ◽  
Isonicotinic Acid ◽  
Three Dimensional ◽  
Water Molecules ◽  
Space Group ◽  
Distorted Octahedral

Single crystals of [Mn(H2O)2]4[HNC5H4(COO)]2[C6H2(COO)4]2·4H2O have been prepared in aqueous solution at 55 °C. Space group P-1 (no. 2), a = 999.7(2), b = 1314.4(2), c =1645.8(2) pm, α = 101.096(8)°, β = 92.796(14)°, γ = 96.03(2)°, V = 2.1053(5) nm3, Z = 2.There are four unique Mn2+ which are coordinated in a distorted, octahedral manner by twowater molecules, three oxygen atoms of the pyromellitate anions and one oxygen atom of isonicotinic acid (Mn—O 208.6(2) — 227.3(3) pm). The connection of Mn2+ and [C6H2(COO)4]4— yields a three-dimensional coordination polymer with two different, channel-like voids extending parallel to [110]. The first channel accomodates water molecules, the second channel is filled by isonicotinic acid molecules. Thermogravimetric analysis in air revealed that the loss of water of crystallisation occurs in two steps between 97 and 200 °C. The dehydrated sample was stable between 200 and 340 °C. Further decomposition yielded Mn3O4.

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