In the title complex, [Pt(N(3))(4)(C(10)H(9)N(3))], the Pt(IV) ion is six-coordinated in a slightly distorted octa-hedral environment by the two pyridine N atoms of the chelating di-2-pyridyl-amine (dpa) ligand and four N atoms from four azide anions. The dpa ligand is not planar, the dihedral angle between the pyridine rings being 20.0 (3)°. The azide ligands are slightly bent [N-N-N = 173.5 (...

In the title complex, [PtBr(2)(C(13)H(9)N)(2)], the Pt(II) ion is four-coordinated in a slightly distorted square-planar environment by two N atoms from two acridine ligands and two Br atoms. The Pt atom is located on an inversion centre, and thus the asymmetric unit contains one half of the complex and the PtN(2)Br(2) unit is exactly planar. The dihedral angle between the PtN(2)Br(2) unit and ...

The Pt(IV) ion in the title complex, [PtBr(4)(C(10)H(9)N(3))], is six-coordinated in a slightly distorted octa-hedral environment by two pyridine N atoms from a chelating di-2-pyridyl-amine (dpa) ligand and four Br(-) anions. The complex mol-ecule has mirror symmetry, with the Pt(IV) atom, two Br atoms and the central N atom of the dpa ligand lying on the mirror plane. The dpa ligand is not pla...

In the title complex, [PtBr(4)(C(10)H(8)N(2))], the Pt(IV) ion has a slightly distorted octa-hedral coordination defined by two N atoms of the chelating 2,2'-bipyridine ligand and four bromide ions. As a result of the different trans effects of the N and Br atoms, the Pt-Br bonds trans to the N atom are slightly shorter than those to mutually trans Br atoms. In the crystal structure, the mol-ec...

In this paper we classify fuzzy subgroups of the dihedral group $D_{pqrs}$  for distinct primes  $p$, $q$, $r$ and $s$. This follows similar work we have done on distinct fuzzy subgroups of some dihedral groups.We present formulae for the number of (i) distinct maximal chains of subgroups, (ii) distinct fuzzy subgroups and (iii) non-isomorphic classes of fuzzy subgroups under our chosen equival...

The asymmetric unit of the title compound, [Pt(C(23)H(17)N(2))Cl], contains two independent mol-ecules with distinct dihedral angles between the central pyridyl and methylbenzene rings [7.77 (2) and 24.07 (2)°]. Short inter-molecular distances [3.582 (6) and 3.600 (6) Å] between the outer pyridine and the PtNC(3) and PtN(2)C(2) rings, respectively, indicate the existence of π-π inter-actions, w...

In the title complex, [PtCl2(C5H11N)(C6H6N2O2)], the Pt(II) metal atom displays a slightly distorted trans-PtN2Cl2 square-planar coordination geometry. The dihedral angle between the mean plane of the benzene and piperidine rings is 89.03 (3)°. In the crystal structure, inversion dimers are formed via N-H⋯Cl hydrogen-bond inter-actions, resulting in chains parallel to the [001] direction. The b...