{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["78(Pt 4)"],"submitter":["Yennawar HP"],"pubmed_abstract":["The crystal structure of racemic (<i>R</i>/<i>S</i>,<i>E</i>)-2-(4-hy-droxy-phen-yl)-4-(2-phenyl-hydrazin-1-yl-idene)chromane-5,7-diol ethanol monosolvate, C<sub>21</sub>H<sub>18</sub>N<sub>2</sub>O<sub>4</sub>·C<sub>2</sub>H<sub>6</sub>O, in a centrosymmetric lattice is reported. The two racemates occupy the same position in the asymmetric unit - <i>a disordered mixed enanti-omeric structure</i>. Hydrogen bonds of the type O-H⋯C(π) in addition to typical C-H⋯O, O-H⋯O and O-H⋯N are identified. A positional disorder is seen in the solvent mol-ecule (ethanol) as well. The phenyl-hydrazone group is nearly coplanar with the chromane ring system [dihedral angle = 15.5 (1)°], while the the 4-hy-droxy-phenyl ring is perpendicular [dihedral angle = 87.2 (1)°] to the chromane. The pyran ring has an"],"journal":["Acta crystallographica. Section E, Crystallographic communications"],"pagination":["346-348"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC8983983"],"repository":["biostudies-literature"],"pubmed_title":["Crystal structure of racemic (<i>R</i>/<i>S</i>,<i>E</i>)-2-(4-hy-droxy-phen-yl)-4-(2-phenyl-hydrazin-1-yl-idene)chromane-5,7-diol ethanol monosolvate."],"pmcid":["PMC8983983"],"pubmed_authors":["Yennawar HP","Sigmon A"],"additional_accession":[]},"is_claimable":false,"name":"Crystal structure of racemic (<i>R</i>/<i>S</i>,<i>E</i>)-2-(4-hy-droxy-phen-yl)-4-(2-phenyl-hydrazin-1-yl-idene)chromane-5,7-diol ethanol monosolvate.","description":"The crystal structure of racemic (<i>R</i>/<i>S</i>,<i>E</i>)-2-(4-hy-droxy-phen-yl)-4-(2-phenyl-hydrazin-1-yl-idene)chromane-5,7-diol ethanol monosolvate, C<sub>21</sub>H<sub>18</sub>N<sub>2</sub>O<sub>4</sub>·C<sub>2</sub>H<sub>6</sub>O, in a centrosymmetric lattice is reported. The two racemates occupy the same position in the asymmetric unit - <i>a disordered mixed enanti-omeric structure</i>. Hydrogen bonds of the type O-H⋯C(π) in addition to typical C-H⋯O, O-H⋯O and O-H⋯N are identified. A positional disorder is seen in the solvent mol-ecule (ethanol) as well. The phenyl-hydrazone group is nearly coplanar with the chromane ring system [dihedral angle = 15.5 (1)°], while the the 4-hy-droxy-phenyl ring is perpendicular [dihedral angle = 87.2 (1)°] to the chromane. The pyran ring has an","dates":{"release":"2022-01-01T00:00:00Z","publication":"2022 Apr","modification":"2025-04-05T14:43:01.196Z","creation":"2025-04-05T14:43:01.196Z"},"accession":"S-EPMC8983983","cross_references":{"pubmed":["35492281"],"doi":["10.1107/S2056989022002079"]}}