The title compound, C18H23N2O2 (+)·Cl(-), crystallizes with two independent cations and anions per cell. Each cation has twofold rotational disorder about the linking vinyl groups but with unequal occupancies [0.963 (5):0.037 (5) and 0.860 (8):0.140 (8)]. The two independent cations are close to being related by an inversion centre but the data does not support the expected centrosymmetric space-group assignment. The conclusion is that the differing rotational disorder has lead to an overall non-centrosymmetric lattice. In the crystal, the mol-ecules pack in layers parallel to (133) and (-13-3), chain-linked with motif C (1) 2(7) by the di-hydroxy-propyl O-H⋯Cl⋯H-O hydrogen bonds. Other lattice binding is provided by O-H⋯Cl, C-H⋯Cl and C-H⋯N inter-actions.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3914108 | PMC |
| http://dx.doi.org/10.1107/S1600536813033254 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Relaxation process of photoexcited berberine via aggregation and dissociation state-dependent intramolecular electron transfer.
Photochem Photobiol Sci
December 2024
Department of Applied Chemistry for Environment, Graduate School of Urban Environmental Sciences, Tokyo Metropolitan University, 1-1 Minami-Osawa, Hachioji-Shi, Tokyo, 192-0397, Japan.
The fluorescence quantum yield of berberine in aqueous solution is significantly smaller than those of organic solution. The time profile of fluorescence intensity of berberine was analyzed by a bi-exponential function, showing that two kinds of states of berberine exist in the solutions. The observed fluorescence lifetime of shorter lifetime species of berberine in water (0.
View Article and Find Full Text PDF[Correlation between serum ghrelin and liver-expressed antimicrobial peptide-2 with idiopathic short stature in children].
Zhongguo Dang Dai Er Ke Za Zhi
December 2024
Department of Pediatrics, First Affiliated Hospital of Shihezi University, Shihezi, Xinjiang 832008, China.
Objectives: To investigate the expression levels of ghrelin and liver-expressed antimicrobial peptide-2 (LEAP-2) in children with idiopathic short stature (ISS) to provide reference for further understanding the etiology of short stature.
Methods: A prospective study was conducted from December 2021 to October 2023, involving 46 children diagnosed with ISS (ISS group) and 46 healthy children with normal height (control group) at the First Affiliated Hospital of Shihezi University. General data and serum levels of ghrelin and LEAP-2 were compared between the two groups.
Correlation Decoupling of Casimir Interaction in an Electrolyte Driven by External Electric Fields.
Phys Rev Lett
December 2024
School of Physical Sciences, University of Chinese Academy of Sciences (UCAS), Beijing 100049, China.
It is well established that the long-range van der Waals or thermal Casimir interaction between two semi-infinite dielectrics separated by a distance H is screened by an intervening electrolyte. Here we show how this interaction is modified when an electric field of strength E is applied parallel to the dielectric boundaries, leading to a nonequilibrium steady state with a current. The presence of the field induces a long-range thermal repulsive interaction, scaling just like the thermal Casimir interaction between dielectrics without the intervening electrolyte, i.
View Article and Find Full Text PDFReversing Surface Charge for Highly-Active Organic Photovoltaic Catalysts.
Angew Chem Int Ed Engl
December 2024
ICCAS: Institute of Chemistry Chinese Academy of Sciences, ICCAS, ICCAS, CHINA.
Organic photovoltaic materials typically exhibit low charge separation and transfer efficiency and severe exciton/carrier recombination due to high exciton binding energy and short exciton diffusion lengths, limiting the enhancement of photocatalytic hydrogen evolution performance. Here, we introduce a surface charge reversal strategy to regulate charge characters of organic photovoltaic catalyst (OPC). Compared to OPC nanoparticles (NPs) stabilized by anionic surfactant ((-) NPs), NPs stabilized by cationic surfactant ((+) NPs) exhibit a raised Fermi level, larger surface band bending and Schottky barrier, thereby enhancing charge separation and transfer efficiency while suppressing charge carrier recombination.
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 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!