In the crystal structure of the title compound, [Cu(C(16)H(36)N(4))](C(14)H(14)O(2)PS(2))(2), the Cu(II) atom is located on an inversion center and is chelated by four N atoms of the macrocyclic meso-5,5,7,12,12,14- hexa-methyl-1,4,8,11-tetra-azacyclo-tetra-decane ligand in a square-planar geometry, with Cu-N distances of 2.013 (3) and 2.014 (3) Å. In the crystal structure, one O,S-dibenzyl dithio-phosphate counter-anion links with the Cu(II) complex cation through N-H⋯O and N-H⋯S hydrogen bonding. During the synthesis, the structure of the anion re-arranged from O,O'-dibenzyl dithio-phosphate in the starting material to O,S-dibenzyl dithio-phosphate in the title compound.
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http://dx.doi.org/10.1107/S1600536809030037 | DOI Listing |
Symmetry-breaking spin-state transitions in two of three isostructural salts of MnIII spin-crossover cations, [MnIII(3-OMe-5-NO2-sal2323)]+, with heavy anions are reported. The ReO4- salt undergoes two-step spin crossover which is coupled with a re-entrant symmetry-breaking structural phase transition between a high temperature phase (S = 2, C2/c), an intermediate ordered phase (S = 1/S = 2, P21/c), and a low temperature phase (S = 1, C2/c). The AsF6- complex undergoes an abrupt transition between a high temperature phase (S = 2, C2/c) and a low temperature ordered phase (S = 1/S = 2, P-1).
View Article and Find Full Text PDFJMIR Form Res
January 2025
Center for Cancer Health Equity, Rutgers Cancer Institute, New Brunswick, NJ, United States.
Background: Cervical cancer disparities persist among minoritized women due to infrequent screening and poor follow-up. Structural and psychosocial barriers to following up with colposcopy are problematic for minoritized women. Evidence-based interventions using patient navigation and tailored telephone counseling, including the Tailored Communication for Cervical Cancer Risk (TC3), have modestly improved colposcopy attendance.
View Article and Find Full Text PDFInorg Chem
January 2025
Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States.
The photophysical properties of six new luminescent tetrahedral Zn(II) complexes are presented that survey two electronic donor moieties (phenolate and carbazolate) and three electronic acceptors (pyridine, pyrimidine, and pyrazine). A unique ligand based on an -terphenyl motif forms an eight-membered chelate, which enhances through-space charge-transfer (CT) interactions by limiting through-bond conjugation between the donor and acceptor. A single isomeric product was obtained in yields up to 90%.
View Article and Find Full Text PDFChem Commun (Camb)
January 2025
Institute of Inorganic Chemistry, Czech Academy of Sciences, 250 68 Husinec-Řež, Czech Republic.
Co-pyrolysis reactions of BBr with SBr at 350 °C yielded the brominated thiaboranes -SBBr (1), -1-SBBr (2) and -SBBr (3), confirmed by high-resolution mass spectrometry, experimental and computational B NMR spectroscopy. The strong Br(σ-hole)⋯Br(ring) attraction has been the decisive energy contribution in the crystal of 1.
View Article and Find Full Text PDFACS Nano
January 2025
Department of Physics, National University of Singapore, Singapore 117551, Singapore.
Phase separation plays a crucial role in many natural and industrial processes, such as the formation of clouds and minerals and the distillation of crude oil. In metals and alloys, phase separation is an important approach often utilized to improve their mechanical strength for use in construction, automobile, and aerospace manufacturing. Despite its importance in many processes, the atomic details of phase separation are largely unknown.
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