Electrocrystallization, Crystal Structure, and Solid State Properties of Halogen-Bridged One-Dimensional Compound, {[Ni(en)2Br](ClO4)2)∝, Having an Elongated Ni ••• Ni Distance

1996 ◽  
Vol 278 (1) ◽  
pp. 189-197
Author(s):  
Yoshiki Ozawa ◽  
Taka Yuki Ikuno ◽  
Shin-Ichi Amano ◽  
Takashi Ida ◽  
Akito Ibaraki ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
One Dimensional

Total assignment of the 1H and 13C spectra of mikanokryptin and comparison of its solution and solid state conformations

1985 ◽  
Vol 63 (4) ◽  
pp. 849-853 ◽  
Author(s):  
William F. Reynolds ◽  
Raul G. Enríquez ◽  
Marco A. Chavez ◽  
Ana L. Silba ◽  
Miguel A. Martinez
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Pulse Sequences ◽  
Detailed Comparison ◽  
Coupling Constants ◽  
Dihedral Angles ◽  
Two Dimensional ◽  
Spectral Editing ◽  
One Dimensional ◽  
Inversion Recovery Pulse

The 1H and 13C spectra of mikanokryptin are unambiguously assigned using a variety of one-dimensional nmr experiments (selective homonuclear decoupling, use of inversion–recovery pulse sequences to reveal hidden peaks, and DEPT spectral editing) in conjunction with normal and "long range" two-dimensional heteronuclear correlated experiments. Detailed comparison of vicinal, allylic, and homoallylic 1H—1H coupling constants with dihedral angles determined from an earlier crystal structure determination indicates that solution and solid state configurations are similar.

scholarly journals Synthesis, Crystal Structure, and Electrical Properties of a New Molybdylarsenate LiNa5K3Mo11As3O45

2014 ◽  
Vol 2014 ◽  
pp. 1-9
Author(s):  
Hamadi Hamza ◽  
Mohamed Faouzi Zid ◽  
Ahmed Driss
Keyword(s):  
Crystal Structure ◽  
Electrical Conductivity ◽  
Solid State ◽  
Inorganic Compound ◽  
X Ray Diffraction ◽  
Solid State Method ◽  
One Dimensional ◽  
X Ray ◽  
Triclinic System ◽  
State Method

LiNa5K3Mo11As3O45 is a new inorganic compound. It was synthesized by a solid state method. The crystal structure has been studied by single crystal X-ray analysis. The R-values reached 2.8%. The title compound crystallizes in the triclinic system, space group P-1, with a = 10.550 (2) Å, b = 11.723 (2) Å, c = 17.469 (3) Å, α = 102.35 (3)°, β = 87.61 (2)°, and γ = 111.03 (3)°. The anionic unit [Mo11As3O45]9− is formed by nine MoO6 octahedra, two MoO5 trigonal bipyramids, and three AsO4 tetrahedra. The association of [Mo11As3O45]9− units, running along [010], leads to a one-dimensional framework. Li, K, and Na are located in the space surrounding the anionic ribbons. This material was characterized by SEM microscopy, IR spectroscopy, and powder X-ray diffraction. The electrical conductivity was investigated from 528 K to 673 K by impedance complex followed by DSC spectroscopy.

Hantzsch 1,4-dihydropyridine esters and analogs: candidates for generating reproducible one-dimensional packing motifs

2009 ◽  
Vol 65 (3) ◽  
pp. 375-381 ◽  
Author(s):  
R. S. Rathore ◽  
B. Palakshi Reddy ◽  
V. Vijayakumar ◽  
R. Venkat Ragavan ◽  
T. Narasimhamurthy
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Hydrogen Bonds ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Structural Requirements ◽  
One Dimensional ◽  
High Binding ◽  
Solid State Materials ◽  
Derivatives Of

Examination of the symmetric Hantzsch 1,4-dihydropyridine ester derivatives of the prototypical nifedipine molecule indicates the tendency of this class of molecule to form a common packing motif. Crystal structure analysis of 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic diesters and analogs reveals that they form extended chains, characterized as the C(6) packing motif, via intermolecular (amine) N—H...O=C (C3,C5 carbonyl) hydrogen bonds. In addition, all the prepared derivatives also satisfy the basic structural requirements for their high binding efficiency to the receptor. The reproducible C(6) packing motif observed among these compounds has a use in the design of solid-state materials.

Kristallstruktur von NH4CuS4 / The Crystal Structure of NH4CuS4

1980 ◽  
Vol 35 (12) ◽  
pp. 1511-1513 ◽  
Author(s):  
Christian Burschka
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
One Dimensional ◽  
X Ray ◽  
Orthorhombic Crystals ◽  
Chelate Rings

NH4CuS4 was prepared according to syntheses reported in the literature. Orthorhombic crystals could be grown (P212121, a = 5.249(1), b = 8.444(2), c = 12.782(2) Å , Z = 4), the structure of which was solved from X-ray diffractometer data (R = 0.031 for 767 obs. reflections). In the solid state (CuS4)--chelate rings are linked via additional Cu-S-bonds to form one-dimensional polymeric anions.

scholarly journals Two coordination compounds of SnCl2 with 4-methylpyridine N-oxide

2021 ◽  
Vol 77 (2) ◽  
pp. 91-95
Author(s):  
Felix Henkel ◽  
Hans Reuter
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Solid State ◽  
Coordination Compounds ◽  
Bond Angle ◽  
Lewis Base ◽  
One Dimensional ◽  
Bonding Parameters ◽  
Solid State Structures ◽  
Endocyclic Bond

In the solid-state structures of catena-poly[[dichloridotin(II)]-μ2-(4-methylpyridine N-oxide)-κ2 O:O], [SnCl2(C6H7NO)] n , 1, and dichloridobis(4-methylpyridine N-oxide-κO)tin(II), [SnCl2(C6H7NO)2], 2, the bivalent tin atoms reveal a seesaw coordination with both chlorine atoms in equatorial and the Lewis base molecules in axial positions. While the Sn—Cl distances are almost identical, the Sn—O distances vary significantly as a result of the different bonding modes (μ2 for 1, μ1 for 2) of the 4-methylpyridin-N-oxide molecules, giving rise to a one-dimensional coordination polymer for the 1:1 adduct, 1, and a molecular structure for the 1:2 adduct, 2. The different coordination modes also influence the bonding parameters within the almost planar ligand molecules, mostly expressed in N—O-bond lengthening and endocyclic bond-angle widening at the nitrogen atoms. Additional supramolecular features are found in the crystal structure of 2 as two adjacent molecules form dimers via additional, weak O...Sn interactions.

A new one-dimensional strontium vanadium tellurite, Sr7V4Te12O41

2016 ◽  
Vol 72 (8) ◽  
pp. 647-651 ◽  
Author(s):  
Sun Woo Kim ◽  
Thomas J. Emge ◽  
Martha Greenblatt
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Three Dimensional ◽  
Lone Pair ◽  
Structural Features ◽  
One Dimensional ◽  
Axis Direction ◽  
Lone Pair Electrons

Vanadium tellurites display a rich structural chemistry with interesting physical properties, such as second harmonic generation (SHG). Tellurites,i.e.Te4+Ox, are often observed in unusual structures and form various structural motifs, including isolated clusters, chains, layers, and three-dimensional networks. Similarly, vanadates,i.e.V5+Ox, show rich structural features, such as VO4tetrahedra, VO5square pyramids or trigonal bipyramids, and VO6octahedra. Strontium vanadium tellurite, Sr7V4Te12O41, was obtained from the melt of the solid-state reaction of SrTeO4and VO2in a sealed quartz tube as it cooled from 973 K. The crystal structure exhibits a one-dimensional latticework along theaaxis comprised of paired Sr3Te3Oxunits, namely Sr6Te6O2x+1, with corner-shared TeO4polyhedra – and specifically the Te lone-pair electrons – facing outward in thebcplane. The Sr6Te6O2x+1latticework is helical and is layered in theb-axis direction against sheets of corner-shared VO4tetrahedra, and is linked in thec-axis directionviaindividual corner-shared SrO8square prisms.

scholarly journals Crystal Structure and Photophysical Properties of a Novel Dy-Hg Isonicotinic Acid Compound with One-Dimensional Chain-Like Cations

2020 ◽  
Vol 67 (4) ◽  
pp. 1111-1117
Author(s):  
Wen-Tong Chen
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Emission Band ◽  
Hydrothermal Reaction ◽  
Isonicotinic Acid ◽  
Photophysical Properties ◽  
Diffuse Reflectance Spectrum ◽  
Yellow Emission ◽  
Monoclinic System ◽  
One Dimensional

A novel Dy-Hg compound [Dy(HIA)3(H2O)2]2n · 2nHgCl4 · nHgCl5 · nH3O · 3nH2O (1; HIA = isonicotinic acid) was prepared through a hydrothermal reaction and characterized by X-ray diffraction. The compound crystallizes in the space group of C2/c of the monoclinic system. The crystal structure of compound 1 has one-dimensional (1-D) chain-like cations. A photoluminescence experiment with a solid-state sample revealed that this compound exhibits a yellow emission band at 575 nm and, this emission band shall come from the 4f electron 4F9/2 → 6H13/2 characteristic transfer of Dy3+ ions. The compound features CIE chromaticity coordinates of 0.5168 and 0.4824 in the yellow region. A UV-visible diffuse reflectance spectrum with a solid-state sample unveiled that this compound possesses a wide optical band gap of 3.39 eV.

Ruthenium(II) Complexes Bearing Thioether-Appended α- Iminopyridine Ligands: Arene Precursors Permit Access to K2-N,N and K3-N,N,S Complexes

2019 ◽  
Author(s):  
Victoria A. Ternes ◽  
Hannah A. Morgan ◽  
Austin P. Lanquist ◽  
Michael P. Murray ◽  
Bradley Wile
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Strong Field ◽  
Active Role ◽  
Binding Mode ◽  
Phenethyl Alcohol ◽  
Ru Complexes

Herein we report the preparation of a series of Ru(II) complexes featuring alpha-iminopyridine ligands bearing thioether functionality (NNS<sup>R</sup>, where R = Me, CH<sub>2</sub>Ph, Ph). Metallation using (<i>p</i> cymene)RuCl dimer permits access to (k<sup>2</sup>-N,N)Ru complexes in which the thioether moiety remains uncoordinated. In the presence of a strong field ligand such as acetonitrile or triphenylphosphine, the p-cymene moiety is displaced, and the ligand adopts a k<sup>3</sup>-N,N,S binding mode. These complexes are characterized using a combination of solution and solid state methods, including the crystal structure of [(NNS<sup>Me</sup>)Ru(NCMe)<sub>2</sub>Cl]Cl. The k<sup>2</sup>-N,N Ru(II) complexes are shown to serve as efficient precatalysts for the oxidation of sec-phenethyl alcohol at 5 mol% loadings, using a variety of external oxidants and solvents. The complex bearing an S-Ph donor was found to be the most active of those surveyed, suggesting that the thioether donor plays an active role in catalyst speciation for this transformation.

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