Submillimeter And Millimeter Wave ESR Measurements Of The S=1/2 One Dimensional Zigzag Chain MCuP2O7 (M=Sr, Pb)

2006 ◽  
Author(s):  
K. Shiraki ◽  
M. Yoshida ◽  
S. Okubo ◽  
H. Ohta ◽  
M. Sakamoto ◽  
...  
Keyword(s):  
Millimeter Wave ◽  
Zigzag Chain ◽  
One Dimensional

High Field ESR Measurements on One Dimensional Antiferromagnetic Zigzag Chain Systems

2008 ◽  
Vol 53 (9(2)) ◽  
pp. 999-1005
Author(s):  
Hitoshi Ohta ◽  
Susumu Okubo ◽  
Kousuke Shiraki ◽  
Makoto Yoshida ◽  
Alexei A. Belik ◽  
...  
Keyword(s):  
High Field ◽  
Zigzag Chain ◽  
One Dimensional ◽  
High Field Esr

1-(2-Chlorobenzyl)-2-methylpyridinium bis(maleonitriledithiolato)nickelate(III)

2006 ◽  
Vol 62 (4) ◽  
pp. m936-m938
Author(s):  
Chun-Lin Ni ◽  
Ming-Guo Liu
Keyword(s):  
Title Compound ◽  
Zigzag Chain ◽  
Coordination Geometry ◽  
Ionic Complex ◽  
One Dimensional ◽  
Π Interactions ◽  
Square Planar

The title compound is a new ionic complex, (C13H13ClN)[Ni(C4N2S2)2] or [ClBzPyMe][Ni(mnt)2] [where ClBzPyMe is 1-(2-chlorobenzyl)-2-methylpyridinium and mnt is maleonitriledithiolate]. In the anion the NiIII atom is coordinated by the four S atoms of two mnt2− ligands and exhibits the expected square-planar coordination geometry. In the [ClBzPyMe]+ cation the benzene and pyridine rings are twisted with respect to the C/C/N plane incorporating the methylene C atom that links them. The [Ni(mnt)2]− anions and [ClBzPyMe]+ cations stack into well segregated columns along the a axis, and the NiIII ions form a one-dimensional zigzag chain through weak Ni...S, S...S, and π–π interactions.

An organic–inorganic hybrid compound containing imidazolium cations and a one-dimensional lithium hexacyanidocobaltate-based anionic framework

2014 ◽  
Vol 70 (6) ◽  
pp. 603-605 ◽  
Author(s):  
Xiu-Dan Shao ◽  
Chun-Hua Yu
Keyword(s):  
Three Dimensional ◽  
Chain Structure ◽  
Supramolecular Network ◽  
Monoclinic Space Group ◽  
Zigzag Chain ◽  
Imidazolium Chloride ◽  
Hybrid Compound ◽  
Inorganic Hybrid ◽  
One Dimensional ◽  
Imidazolium Cations

An organic–inorganic hybrid compound,catena-poly[bis(3H-imidazol-1-ium) [[tetracyanido-κ4C-cobalt(III)]-μ-cyanido-κ2C:N-[diaqualithium(I)]-μ-cyanido-κ2N:C]], {(C3H5N2)2[CoLi(CN)6(H2O)2]}n, was synthesized by the reaction of Li3[Co(CN)6] with imidazolium chloride in aqueous solution. The compound crystallizes in the monoclinic space groupC2/c(data collected at 273 K). In the crystal structure, neighbouring [Co(CN)6]3−anionic units are linked by Li+cations through the cyanide groups in atransmode, forming a one-dimensional zigzag chain structure extending along thecaxis. A three-dimensional supramolecular network is formed through hydrogen-bonding interactions and is further stabilized by weak CN...π interactions between the cyanide groups and the imidazolium cations.

Supramolecular networks and Hirshfeld surfaces of oxydiacetic acid and iminodiacetic acid salts

2019 ◽  
Vol 75 (3) ◽  
pp. 449-458
Author(s):  
V. Gomathi ◽  
C. Theivarasu
Keyword(s):  
Iminodiacetic Acid ◽  
Intramolecular Proton Transfer ◽  
Zigzag Chain ◽  
One Dimensional ◽  
Molecular Salts ◽  
Hirshfeld Analysis ◽  
Supramolecular Networks ◽  
Oxydiacetic Acid ◽  
Supramolecular Chains

Oxydiacetic acid (Oda) and iminodiacetic acid (Ida) have been combined with two diamines, namely ethylenediamine (en) and o-phenylenediamine (o-phen), to give three molecular crystals of compositions [(Oda2−)(en2+)]·H2O (Odaen), [(Ida−)(0.5en+)] (Idaen) and [(Oda−)(o-phen+)] (Odaophen). Single crystal X-ray structure determination of the three molecular salts revealed that the hydrogen bonding interactions form distinct supramolecular chains. In Odaen, water molecules and Oda2− anions generate one-dimensional supramolecular chains where two chains overlap each other in zigzag form. In Odaophen, Oda− anions generate a one-dimensional linear supramolecular chain. In Idaen, both intermolecular and intramolecular proton transfer occurs. Ida− anions generate a one-dimensional zigzag chain. These one-dimensional supramolecular chains extend to form different two-dimensional supramolecular chains by the interaction of diaminium and monoaminium cations. Intermolecular close contacts are also examined using Hirshfeld analysis to reveal similarities and differences in the crystal structures.

Atomic Scale Study of Surface Structures and Phase Transitions with Reflection High-Energy Positron Diffraction

2008 ◽  
Vol 607 ◽  
pp. 94-98
Author(s):  
Atsuo Kawasuso ◽  
Yuki Fukaya ◽  
M. Hashimoto ◽  
Ayahiko Ichimiya ◽  
H. Narita ◽  
...  
Keyword(s):  
Phase Transition ◽  
Atomic Displacement ◽  
High Energy ◽  
Chain Structure ◽  
High Temperature Phase ◽  
Atomic Scale ◽  
Zigzag Chain ◽  
Temperature Phase ◽  
One Dimensional ◽  
Disorder Type

In this work, we studied a few surfaces, of which the structures have not yet been revealed, using reflection high-energy positron diffraction (RHEPD). We studied the Ge(111)/Pb and Ge(111)/Sn surfaces that exhibit the phase transition from 3×3 to √3×√3 periodicities at around 200K. We found that in both phases the equilibrium positions of Pb and Sn adatoms are conserved. That is, in the unit-cell, one of three adatoms is located upper position and two of them are located lower positions (one-up-two-down). The phase transition is interpreted in terms of an order-disorder type. We furthermore studied the quasi-one dimensional Si(111)/In surface which exhibits the metal-insulator transition at around 120K. The high temperature phase is well explained as the zigzag chain structure. We found that a dynamic atomic displacement which leads to the formation of hexagon structure occur below 120 K. We confirmed the appearance of the band gap using the surface structure determined from the RHEPD rocking curves.

ESR measurements of quasi-one-dimensional antiferromagnet Sr3CuPtO6 in millimeter wave region

1998 ◽  
Vol 177-181 ◽  
pp. 653-654 ◽  
Author(s):  
T. Arioka ◽  
H. Ohta ◽  
S. Okubo ◽  
R. Kanno ◽  
N. Kitamura
Keyword(s):  
Millimeter Wave ◽  
One Dimensional ◽  
Wave Region

Synthesis, crystal structure and fluorescence spectrum of a cadmium(II) sulfaquinoxaline complex

2013 ◽  
Vol 69 (11) ◽  
pp. 1332-1335 ◽  
Author(s):  
Xiu-Hua Zhao ◽  
Ya-Yun Zhao ◽  
Jie Zhang ◽  
Jian-Guo Pan ◽  
Xing Li
Keyword(s):  
Thermal Analysis ◽  
Single Crystal ◽  
Fluorescence Spectrum ◽  
Chain Structure ◽  
Zigzag Chain ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

catena-Poly[[[4-amino-N-(quinoxalin-2-yl)benzenesulfonamidato]aquacadmium(II)]-μ-4-amino-N-(quinoxalin-2-yl)benzenesulfonamidato], [Cd(C14H11N4O2S)2(H2O)], has been synthesized hydrothermally and characterized by single-crystal X-ray diffraction, elemental analysis, fluorescence, IR and thermal analysis. Single-crystal X-ray analysis reveals that the complex is a one-dimensional zigzag chain structure, and the CdIIcation has a distorted octahedral coordination geometry formed by five N atoms from three different sulfaquinoxaline ligands and one O atom from a water molecule. The fluorescence spectrum reveals that the complex emits strong blue fluorescence and thermal analysis shows that the complex has high thermal stability.

Spin line groups

2013 ◽  
Vol 69 (6) ◽  
pp. 611-619 ◽  
Author(s):  
Nataša Lazić ◽  
Marko Milivojević ◽  
Milan Damnjanović
Keyword(s):  
Neutron Diffraction ◽  
Ground State ◽  
Zigzag Chain ◽  
One Dimensional ◽  
Single Orbit ◽  
State Determination ◽  
Special Case

Spin line groups describe the symmetries of spin arrangements in quasi-one-dimensional systems. These groups are derived for the first family of line groups. Among them, magnetic groups are singled out as a special case. Spin arrangements generated by the derived groups are first discussed for single-orbit systems and then the conclusions are extended to multi-orbit cases. The results are illustrated by the examples of a CuO2zigzag chain, a13C nanotube and the hexaferrite Ba2Mg2Fe12O22. Applications to neutron diffraction and classical ground-state determination are indicated.

Ethyl [3-(2-pyridyl)pyrazol-1-yl]acetate monohydrate

2007 ◽  
Vol 63 (3) ◽  
pp. o1380-o1382 ◽  
Author(s):  
Ana C. Coelho ◽  
Isabel S. Gonçalves ◽  
Filipe A. Almeida Paz
Keyword(s):  
Hydrogen Bond ◽  
Organic Molecule ◽  
Organic Molecules ◽  
Water Molecules ◽  
Pyridyl Ring ◽  
Zigzag Chain ◽  
Asymmetric Unit ◽  
Acetate Monohydrate ◽  
One Dimensional ◽  
Compound C

The asymmetric unit of the title compound, C12H13N3O2·H2O, comprises two crystallographically independent organic molecules and two water molecules. There is an O—H...N hydrogen bond between each water molecule and the 2-substituted pyridyl ring of an organic molecule. The water molecules are further engaged in disordered O—H...O hydrogen bonds with each other, leading to the formation of a one-dimensional zigzag chain running parallel to the b axis.

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