"Trans" 1,4-Chloro-Bromocyclohexane.

Trans-, 14 | 2012

Conformer-specific ionization spectroscopy of bromocyclohexane: equatorial versus axial conformers.

Ionization of equatorial and axial conformational isomers of the chair-bromocyclohexane is investigated with use of the vacuum ultraviolet mass-analyzed threshold ionization (MATI) spectroscopic technique. Two distinct ionization energies of 9.8308 ± 0.0025 and 9.8409 ± 0.0025 eV are determined for equatorial or axial conformers, respectively. From the conformer-selective vibrational analysis, ...

trans-Dichloridobis{2-chloro-6-[(3-fluoro­benz­yl)amino]-9-isopropyl-9H-purine-κN 7}platinum(II)

In the title compound, trans-[PtCl2(C15H15ClFN5)2], the Pt(II) atom, located on an inversion centre, is coordinated by the purine N atoms of the 2-chloro-6-[(3-fluoro-benz-yl)amino]-9-isopropyl-9H-purine ligands and two Cl atoms in a slightly distorted trans-square-planar coordination geometry [N-Pt-Cl angles = 89.91 (5) and 90.09 (5)°]. Weak intra-molecular N-H⋯Cl contacts occur. In the crysta...

cis-Dichlorido(3-chloro-2-methyl­imino­phenyl-κ2 C 1,N)-trans-bis­(trimethyl­phosphine-κP)cobalt(III)

In the title compound, [CoCl(2)(C(8)H(7)ClN)(C(3)H(9)P)(2)], the Co atom displays an octa-hedral coordination, with two cis Cl atoms perpendicular to two trans trimethyl-phosphine ligands as well as trans to the bidentate 3-chloro-2-methyl-imino-phenyl ligand.

14-Bromo-12-chloro-2,16-dioxa­penta­cyclo­[7.7.5.01,21.03,8.010,15]henicosa-3(8),10,12,14-tetra­ene-7,20-dione

In the title compound, C19H16BrClO4, both the fused xanthene rings and one of the cyclo-hexane rings adopt envelope conformations, while the other cyclo-hexane ring is in a chair conformation. In the crystal, mol-ecules are linked by C-H⋯O hydrogen bonds, forming infinite chains running along [10-1] incorporating R 2 (2)(16) ring motifs. In addition, C-H⋯π inter-actions and weak π-π stacking in...