The Pt(II) ion in the title complex, [PtBr(2)(C(10)H(9)N(3))], is four-coordinated in an essentially square-planar environment by two N atoms from a chelating di-2-pyridyl-amine (dpa) ligand and two Br(-) anions. The dpa ligand is not planar, with the dihedral angle between the pyridine rings being 40.8 (2)°. The complex mol-ecules are stacked in columns along [001] through π-π inter-actions be...

In the title complex, [PtBr(2)(C(11)H(9)N)(2)], the Pt(II) ion has a distorted cis-Br(2)N(2) square-planar coordination geometry defined by two N atoms from two 2-phenyl-pyridine (ppy) ligands and two Br(-) anions. The ppy ligands are not planar, the dihedral angles between the pyridine and benzene rings being 49.0 (3) and 47.3 (3)°. In the crystal, the complex mol-ecules are stacked in columns...

the binding energy and thermodynamic parameters of cis- platinum di ammino chlorine (cis-[pt(nh3)2cl]+) and trans- platinum di ammino chlorine (trans- [pt(nh3)2cl]+) complexes withguanine has been studied by density functional theory (dft) calculations in water. the bindingenergies (ebin) of cis- and trans-[pt(nh3)2clg]+ are calculated to be 79.38 kcal/mol and 74.98kcal/mol, respectively. the b...

In the title complex, cis-[PtCl(2)(C(11)H(9)N)(2)], the Pt(II) ion is situated in a slightly distorted square-planar environment coordinated by two N atoms from two 2-phenyl-pyridine ligands and two Cl atoms. The two pyridyl planes are inclined with dihedral angles of 59.1 (2) and 61.84 (19)° with respect to the PtCl(2)N(2) plane. In the crystal, the complex mol-ecules display inter- and intra-...

In this paper, we compute the number of fuzzy subgroups of some classes of non-abeilan groups. Explicit formulas are givenfor dihedral groups $D_{2n}$, quasi-dihedral groups $QD_{2^n}$, generalized quaternion groups $Q_{4n}$ and modular $p$-groups $M_{p^n}$.

“Escherization” [9] is a process that finds an Escher-like tiling of the plane from tiles that resemble a user-supplied goal shape. We show how the original Escherization algorithm can be adapted to the dihedral case, producing tilings with two distinct shapes. We use a form of the adapted algorithm to create drawings in the style of Escher’s print Sky and Water. Finally, we develop an Escheriz...