The asymmetric unit of the title compound, C18H16O4, contains two crystallographically independent mol-ecules. The anthra-quinone ring systems are slightly bent with dihedral angles of 2.33 (8) and 13.31 (9)° between the two terminal benzene rings. In the crystal, the two independent mol-ecules adopt slipped-parallel π-overlap with an average inter-planar distance of 3.45 Å, forming a dimer; the centroid-centroid distances of the π-π inter-actions are 3.6659 (15)-3.8987 (15) Å. The mol-ecules are also linked by C-H⋯O inter-actions, forming a tape structure along the a-axis direction. The crystal packing is characterized by a dimer-herringbone pattern.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4518951 | PMC |
| http://dx.doi.org/10.1107/S2056989015011901 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Synthesis, crystal structure and Hirshfeld surface analysis of (2-amino-1-methyl-benzimidazole-κ )aqua-bis-(4-oxopent-2-en-2-olato-κ ,')nickel(II) ethanol monosolvate.
Acta Crystallogr E Crystallogr Commun
October 2024
The mol-ecule of the title compound, [Ni(CHO)(CHN)(HO)]·CHOH, has triclinic () symmetry. This compound is of inter-est for its anti-microbial properties. The asymmetric unit comprises two independent complex mol-ecules, which are linked by N-H⋯O and O-H⋯O hydrogen bonds along [111].
View Article and Find Full Text PDFSynthesis, crystal structure and properties of μ-tetra-thio-anti-monato-bis-[(cyclam)zinc(II)] perchlorate 0.8-hydrate.
Acta Crystallogr E Crystallogr Commun
October 2024
Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, D-24118 Kiel, Germany.
The reaction of Zn(ClO)·6HO with NaSbS·9HO in a water/aceto-nitrile mixture leads to the formation of the title compound, (μ-tetra-thio-anti-monato-κ :')bis-[(1,4,8,11-tetra-aza-cyclo-tetra-decane-κ )zinc(II)] perchlorate 0.8-hydrate, [Zn(SbS)(CHN)]ClO·0.8HO or [(Zn-cyclam)(SbS)][ClO]·0.
View Article and Find Full Text PDF2-Amino-5-oxo-4-(thio-phen-2-yl)-5,6,7,8-tetra-hydro-4-chromene-3-carbo-nitrile.
IUCrdata
November 2024
School of Chemistry and Physics, University of KwaZulu-Natal, Westville campus, Private bag X54001, Durban, 4000, South Africa.
The crystal structure of the title compound, CHNOS, reveals two symmetrically independent mol-ecules within the asymmetric unit. Each mol-ecule contains a chromenone core attached to a 2-thio-phene ring, cyano, and amino groups. The 2-thio-phene ring of one of the two mol-ecules in the asymmetric unit was found to be disordered over two positions, with the major component having a site occupancy factor of 0.
View Article and Find Full Text PDFSynthesis and crystal structure of poly[[μ-chlorido-μ-(2,3-di-methyl-pyrazine)-copper(I)] ethanol hemisolvate], which shows a new isomeric CuCl(2,3-di-methyl-pyrazine) network.
Acta Crystallogr E Crystallogr Commun
September 2024
Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany.
Reaction of copper(I)chloride with 2,3-di-methyl-pyrazine in ethanol leads to the formation of the title compound, poly[[μ-chlorido-μ-(2,3-di-methyl-pyrazine)-copper(I)] ethanol hemisolvate], {[CuCl(CHN)]·0.5CHOH} or CuCl(2,3-di-methyl-pyrazine) ethanol hemisolvate. Its asymmetric unit consists of two crystallographically independent copper cations, two chloride anions and two 2,3-di-methyl-pyrazine ligands as well as one ethanol solvate mol-ecule in general positions.
View Article and Find Full Text PDFA new triazole-based -heterocyclic carbene Ir cationic complex with a tetra-fluorido-borate counter-anion and hemi-solvating di-chloro-methane, [Ir(CH)(CHN)(CHP)]BF·0.5CHCl, has been synthesized and structurally characterized. There are two independent ion pairs in the asymmetric unit and one di-chloro-methane solvent mol-ecule per two ion pairs.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!