scholarly journals An Efficient Preparation, Spectroscopic Properties, and Crystal Structure of 1,1-Bis(4-[2-(dimethylamino)ethoxy]phenyl)-2-(3-guaiazulenyl)ethylene

2009 ◽  
Vol 2009 ◽  
pp. 1-5
Author(s):  
Shin-ichi Takekuma ◽  
Seiki Hori ◽  
Toshie Minematsu ◽  
Hideko Takekuma
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Spectroscopic Properties ◽  
Target Molecule ◽  
Reflux Temperature

Reaction of 2-(3-guaiazulenyl)-1,1-bis(4-hydroxyphenyl)ethylene with 2-chloroethyldimethylammonium chloride in acetone in the presence of K2CO3 at reflux temperature for 24 hours gives a new title compound in 89% yield. Spectroscopic properties and crystal structure of the target molecule are reported.

Systhesis, Characterization and Spectroscopic Properties of (2E,6E)-2,6-Bis(2,3,4-tri-methoxy-benzylidene)cyclohexanone

2011 ◽  
Vol 396-398 ◽  
pp. 2338-2341
Author(s):  
Xing Chuan Wei ◽  
Zhi Li Liu ◽  
Kun Zhang ◽  
Zhi Yun Du ◽  
Xi Zheng
Keyword(s):  
Crystal Structure ◽  
Acetic Acid ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Spectroscopic Properties ◽  
Spectral Studies ◽  
Double Bonds ◽  
X Ray ◽  
Π Interactions ◽  
X Ray Crystallography

In this paper, (2E,6E)-2,6-Bis(2,3,4-tri-methoxy -benzylidene)cyclohexanone (omitted as tmbcho) (1) was obtained by the reaction of acetic acid, tetrahydrofuran, cyclohexanone and 2,3,4-tri-methoxy-benzaldehyde. Three non-classic hydrogen bonds were observed in the compound. X-ray crystallography shows that the crystal structure is stabilized by intermolecular C-H•••π interactions and it contains plenty of conjugated double bonds. The title compound was characterized by UV-vis and fluorescent spectral studies.

scholarly journals 1-(6-Bromo-3,4-dihydro-2H-1,4-benzoxazin-4-yl)-2,2-dichloroethanone

2012 ◽  
Vol 68 (8) ◽  
pp. o2509-o2509
Author(s):  
Fei Ye ◽  
Ying Li ◽  
Ying Fu ◽  
Li-Xia Zhao ◽  
Shuang Gao
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Target Molecule ◽  
Envelope Conformation ◽  
Compound C ◽  
Oxazine Ring ◽  
Herbicide Safeners ◽  
Puckering Parameters

The title compound, C10H8BrCl2NO2, is a target molecule in our research on herbicide safeners. The oxazine ring has an envelope conformation, with puckering parameters close to ideal values [Q= 0.498 (3) Å, θ = 53.7 (3)° and φ = 253.4 (4)°]. The crystal structure is stabilized by C—H...O, C—H...Cl and C—H...Br interactions.

The Synthesis, Crystal Structure and Spectroscopic Properties of a Dinuclear μ–Pyrazolato–N,N’–Bridged Dinickel(II) Complex of 1,3–Bis(salicylideneamino)propan–2–ol

2004 ◽  
Vol 59 (8) ◽  
pp. 898-902 ◽  
Author(s):  
C. T. Zeyrek ◽  
A. Elmali ◽  
Y. Elerman
Keyword(s):  
Crystal Structure ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Title Compound ◽  
Spectroscopic Properties ◽  
Monoclinic Space Group ◽  
Nickel Ions ◽  
Space Group ◽  
Cell Parameters ◽  
Pentadentate Ligand

AbstractThe title compound [Ni2(L)(3,5 prz)], prz = pyrazolate with the formally pentadentate ligand L = 1,3-bis(salicylideneamino)propan-2-olate, was synthesized and identified using elemental analysis and IR spectroscopy. It crystallizes in the monoclinic space group P21/c with cell parameters a = 29.873(4), b = 11.131(2), c = 13.166(3) Å , β = 107.770(10)°, V = 4169.0(13) Å3, Z = 4, Dcal = 1.618 Mg/m3. The nickel ions are bridged by the alkoxo group of the ligand and the N atoms of the μ-pyrazolate group. Each nickel(II) ion is coordinated by two N atoms and two O atoms, forming a square with trans-N2O2 geometry. The Ni···Ni distance and the Ni−O−Ni angle are 3.371(1) Å and 126.4(1)°, respectively.

Crystal structure of 12H+-2,4-benzo-1,5-dioxa-8,12,16-triaza-cyclooctadec-2-ene-7,17-dione picrate

2002 ◽  
Vol 217 (1) ◽  
Author(s):  
G. Hundal ◽  
S. Kumar ◽  
M. S. Hundal ◽  
H. Singh
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Compound C

AbstractThe title compound [C

A neutron diffraction study of hydrogen bonding in the deuterium (hydrogen) L-arginine phosphate monohydrate

1997 ◽  
Vol 212 (3) ◽  
Author(s):  
Z. Cheng ◽  
Y. Cheng ◽  
L. Guo ◽  
D. Xu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Neutron Diffraction ◽  
Diffraction Study ◽  
Title Compound ◽  
Neutron Diffraction Study ◽  
Chemical Formula

AbstractThe crystal structure of the title compound D(H)LAP with chemical formula (D

Synthesis, Crystal Structure And Spectroscopic Studies Of A Mixed Ligand Copper (Ii) Complex: Trans-Bis(Succinimidato)-Bis(Benzylamino)Cu(Ii)

2006 ◽  
Vol 61 (8) ◽  
pp. 979-982 ◽  
Author(s):  
Murat Taş ◽  
Hanife Saraçoğlu ◽  
Hümeyra Bati ◽  
Nezihe Çalışkan ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Spectroscopic Studies ◽  
Mixed Ligand ◽  
Interplanar Angle ◽  
Space Group ◽  
Square Planar

The molecules of the title compound, [Cu(C11H13N2O2)2], lie across centres of inversion in space group P21/c and are linked by intermolecular N-H···O and C-H···O hydrogen bonds. The central Cu atom has a slightly distorted square-planar coordination comprised of four N atoms. Cu-N bond distances are 1.975(2) and 2.020(2) Å . The interplanar angle between the phenyl and succinimidato ring is 87.34(10)°

scholarly journals Crystal structure of ethyl 2-{2-[(1Z)-1-hydroxy-3-(4-nitrophenyl)-3-oxoprop-1-en-1-yl]phenoxy}acetate

2015 ◽  
Vol 71 (12) ◽  
pp. o917-o918 ◽  
Author(s):  
Shaaban K. Mohamed ◽  
Joel T. Mague ◽  
Mehmet Akkurt ◽  
Eman A. Ahmed ◽  
Mustafa R. Albayati
Keyword(s):  
Crystal Structure ◽  
Dihedral Angle ◽  
Title Compound ◽  
Compound C

The title compound, C19H17NO7, crystallized in a ratio of about 6:4 of the two possible keto–enol forms. This was observed as disorder over the central C3H2O2unit. The dihedral angle between the rings is 8.2 (2)°.The molecules pack by C—H...O interactions in a layered fashion parallel to (-104).

scholarly journals Bis(dicyanamido-κN)tetrakis(pyridine-κN)nickel(II)

2012 ◽  
Vol 68 (6) ◽  
pp. m745-m745
Author(s):  
Susanne Wöhlert ◽  
Mario Wriedt ◽  
Inke Jess ◽  
Christian Näther
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Space Group ◽  
Pyridine Ligands ◽  
Anionic Ligands

In the crystal structure of the title compound, [Ni(C2N3)2(C5H5N)4], the NiII cations are coordinated by four pyridine ligands and two dicyanamide anions into discrete complexes. The shortest Ni...Ni separation is 8.1068 (10) Å. The structure is pseudo-centrosymmetric and can also be refined in the space group C2/c in which both anionic ligands are strongly disordered and the refinement leads to significantly poorer reliability factors.

2,4-Diamino-6-phenyl-1,3,5-triazin-1-ium nitrate: intriguing crystal structure with high Z′/Z′′ and hydrogen bond numbers and Hirshfeld surface analysis of intermolecular interactions

CrystEngComm ◽  
2021 ◽  
Author(s):  
Nicoleta Caimac ◽  
Elena Melnic ◽  
Diana Chisca ◽  
Marina S. Fonari
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Surface Analysis ◽  
Intermolecular Interactions ◽  
Title Compound ◽  
Ionic Species ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Asymmetric Unit ◽  
Space Group

The title compound crystallises in the triclinic centrosymmetric space group P1̄ with an intriguing high number of crystallographically unique binary salt-like adducts (Z′ = 8) and a total number of ionic species (Z′′ = 16) in the asymmetric unit.

A new molecular building blocks: Synthesis, crystal structure, magnetic and spectroscopic properties of Cu(II) and Ni(II) macrocyclic complexes

Polyhedron ◽  
2011 ◽  
Vol 30 (15) ◽  
pp. 2550-2557 ◽  
Author(s):  
Katarzyna Suracka ◽  
Alina Bieńko ◽  
Jerzy Mroziński ◽  
Rafał Kruszyński ◽  
Dariusz Bieńko ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Building Blocks ◽  
Spectroscopic Properties ◽  
Macrocyclic Complexes ◽  
Molecular Building Blocks
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