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Crystals, Volume 7, Issue 9

2017 September - 26 articles

Cover Story: The newly designed complex [Zn(L1)(EtOH)] (1) derived from coumarin-containing symmetric Salamo-type N2O2 bisoxime ligands, has been synthesized and characterized, and consists of one Zn(II) ion, one completely deprotonated unit and one coordinated ethanol molecule. The Zn(II) ion is penta-coordinated by two oxime nitrogen atoms and two phenoxo oxygen atoms; the four atoms are all from one deprotonated unit, and there is one oxygen atom from the coordinated ethanol molecule. The coordination environment around the Zn(II) ion is best described as a slightly distorted trigonal bipyramidal geometry. Six pairs of intermolecular hydrogen bonds are formed. In addition, the Cg3 of the pyrone rings as acceptors, forms a hydrogen bond with the protons of coordinated ethanol molecules. The space skeleton of complex 1 adopts a 3D supramolecular structure by the action of the O–H···O, C–H···O hydrogen bond, and C–H···π
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Articles (26)

  • Article
  • Open Access
10 Citations
12,655 Views
15 Pages

20 September 2017

While high-throughput screening for protein crystallization conditions have rapidly evolved in the last few decades, it is also becoming increasingly necessary for the control of crystal size and shape as increasing diversity of protein crystallograp...

  • Article
  • Open Access
13 Citations
6,410 Views
15 Pages

18 September 2017

We investigate the microstructure evolution of Ag-alloyed PbTe compounds for thermoelectric (TE) applications with or without additions of 0.04 at. % Bi. We control the nucleation and temporal evolution of Ag2Te-precipitates in the PbTe-matrix applyi...

  • Editorial
  • Open Access
4 Citations
4,164 Views
6 Pages

Crystallography of Functional Materials

  • Winnie Wong-Ng and
  • Claudia J. Rawn

15 September 2017

The goal of this special issue is to obtain new insights into the roles of crystallography in functional materials. This special issue consists of eight papers illustrating the structure and property relationships, as well as applications of selected...

  • Article
  • Open Access
8 Citations
8,009 Views
8 Pages

Structure of a Novel Spinel Li0.5Zn5/3Sb2.5/3O4 by Neutron and Synchrotron Diffraction Analysis

  • José Alfredo Marín-Romero,
  • Luis Edmundo Fuentes-Cobas,
  • Juan Rodríguez-Carvajal,
  • Carolina Tabasco-Novelo and
  • Patricia Quintana

15 September 2017

Zn7/3Sb2/3O4 is a secondary phase in ZnO-based varistors. Acceptor impurities, such as Li+, increase the resistivity. This effect is produced by a modification of the grain boundary barriers. The role of the cationic distribution in the mentioned eve...

  • Article
  • Open Access
3 Citations
5,841 Views
20 Pages

15 September 2017

Below T CO = 157 K the quasi-one-dimensional charge-transfer salt (TMTTF) 2 SbF 6 undergoes a pronounced phase transition to a charge-ordered ground state. We have explored the non-linear and photoconductive behavior as a fun...

  • Article
  • Open Access
4 Citations
6,110 Views
10 Pages

The Effects of a Mixed Precipitant on the Morphology and Electrochemical Performance of LiNi0.5Mn1.5O4 Cathode Materials

  • Yang Shu,
  • Wenchao Yan,
  • Haisong Wang,
  • Jicheng Jiang,
  • Deye Sun,
  • Xiaodi Ma and
  • Yongcheng Jin

14 September 2017

A series of LiNi0.5Mn1.5O4 (LNMO) samples were synthesized by adjusting the molar ratio of (NH4)2CO3 to Na2CO3 in a mixed precipitant for evaluating the effects of ammonia from (NH4)2CO3 as a complexing agent and Na2CO3 as a precipitant on the morpho...

  • Article
  • Open Access
11 Citations
4,635 Views
11 Pages

12 September 2017

A novel inorganic-organic hybrid supramolecular macrocyclic compound, (4-nitroanilinium)(18-crown-6)(PF6)(1), was synthesized and characterized by infrared spectroscopy, thermogravimetric analysis, elemental analysis, differential scanning calorimetr...

  • Article
  • Open Access
38 Citations
6,325 Views
15 Pages

12 September 2017

A newly designed Co(II) complex, [Co3(L)(OAc)2(CH3OH)2]·CH3OH, by the reaction of a bis(salamo)-type tetraoxime ligand (H4L) with Co(II) acetate tetrahydrate was synthesized and characterized by elemental analyses, IR, UV-vis spectra and single-cryst...

  • Article
  • Open Access
9 Citations
6,566 Views
13 Pages

11 September 2017

This study, using atomic-force and polarized-optical light (AFM and POM) microscopies on the extinction banded spherulites of poly(dodecamethylene terephthalate) (P12T) at high Tc = 110 °C with a film thickness kept at 1–3 µm, has verified that bande...

  • Article
  • Open Access
22 Citations
8,038 Views
11 Pages

8 September 2017

Here, we investigate the strengths of R–X···π interactions, involving both chlorine and bromine, in model systems derived from protein-ligand complexes found in the PDB. We find that the strengths of these interactions can vary significantly, with bi...

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Crystals - ISSN 2073-4352