The title methanol hemisolvated quinazolin-(3H)-one, C(16)H(16)N(4)O·0.5CH(3)OH, has an anilino substituent in the 2-position and an amino-ethyl substituent in the 3-position of the planar fused-ring system (r.m.s. deviation = 0.019 Å). The anilino N atom donates an intramolecular hydrogen bond to the amino-ethyl N atom. The mol-ecule and the solvent methanol mol-ecule are linked by N-H⋯N, N-H⋯O and O-H⋯O hydrogen bonds. The methanol mol-ecule is disordered over two equally occupied positions about a twofold rotation axis.
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http://dx.doi.org/10.1107/S1600536809045516 | DOI Listing |
The title compound, [Ir(CHN)(CHN)]PF·CHOH, crystallizes in the 2/ space group with one monocationic iridium complex, one hexa-fluorido-phosphate anion, and one methanol solvent mol-ecule of crystallization in the asymmetric unit, all in general positions. The anion and solvent are linked to the iridium complex cation hydrogen bonding. All bond lengths and angles fall into expected ranges compared to similar compounds.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2024
The present study focuses on the synthesis and structural characterization of a novel dinuclear Cu complex, [tri-chlorido-copper(II)]-μ-chlorido-{bis-[2-hy-droxy-'-(propan-2-yl-idene)benzohydrazide]copper(II)} monohydrate, [CuCl(CHNO)]·HO or [Cu(H )(μ-Cl)CuCl]·HO [H = 2-hy-droxy-'-(propan-2-yl-idene)benzohydrazide]. The complex crystallizes in the monoclinic space group 2/ with one mol-ecule of water, which forms inter-actions with the ligands. The first copper ion is penta-coordinated to two benzohydrazine-derived ligands two nitro-gen and two oxygen atoms, and one bridging chloride, which is also coordinated by the second copper ion alongside three terminal chlorines in a distorted tetra-hedral geometry.
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August 2024
Centre for Hyperpolarisation in Magnetic Resonance, University of York, Heslington, United Kingdom, YO10 5NY.
Single crystals of the mol-ecular compound, {CuIrCl(CHN)(CHN)]·3.18CHOH or [({CuIr}Cl(IMes)(pyrazine))(pyrazine)]·3.18CHOH [where IMes is 1,3-bis-(2,4,6-trimethylphen-yl)imidazol-2-yl-idene], with a unique heterometallic cluster have been prepared and the structure revealed using single-crystal X-ray diffraction.
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August 2024
Department of Chemistry, Taras Shevchenko National University of Kyiv, Volodymyrska str. 64/13, 01601 Kyiv, Ukraine.
In the title complex, [U(CHNO)O(CHOH)] , the U cation has a typical penta-gonal-bipyramidal environment with the equatorial plane defined by one N and two O atoms of one doubly deprotonated 2-[5-(2-hy-droxy-phen-yl)-1-1,2,4-triazol-3-yl]acetic acid ligand, a carboxyl-ate O atom of the symmetry-related ligand and the O atom of the methanol mol-ecule [U-N/O 2.256 (4)-2.504 (5) Å].
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
May 2024
Shaanxi Engineering Research Centre for Conservation and Utilization of Botanical Resources, Xi'an Botanical Garden of Shaanxi Province (Institute of Botany of Shaanxi Province), Xi'an 710061, People's Republic of China.
The title compound, CHNO, was obtained by the de-acetyl-ation reaction of 1-(6-amino-5-nitro-naphthalen-2-yl)ethanone in a concentrated sulfuric acid methanol solution. The mol-ecule comprises a naphthalene ring system bearing an acetyl group (C-3), an amino group (C-7), and a nitro group (C-8). In the crystal, the mol-ecules are assembled into a two-dimensional network by N⋯H/H⋯N and O⋯H/H⋯O hydrogen-bonding inter-actions.
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