Conformational behavior and coordination chemistry of 2,11-dithia[3.3]orthocyclophane with platinum group metals.

DFT Study and NBO Analysis of Conformation Properties of 2,5,5-Trimethyl-1,3,2-Dioxaphosphinane 2-Selenide and Their Dithia and Diselena Analogous

The hybrid density functional theory (B3LYP) and ab initio molecular orbital (HF) based methods and Natural Bond Orbital (NBO) interpretation were used to analyze the conformational behaviors of 2,5,5-trimethyl-1,3,2-dioxaphosphinane 2-selenide (compound 1), 2,5,5-trimethyl-1,3,2-dithiaphosphinane 2-selenide (compound 2) and 2,5,5-trimethyl-1,3,2-diselena phosp...

Promotion of the Cupellation Method for Accurate Determination of Gold Alloy’s Karat Containing Platinum-Group Metals

The main standard method for gold karat determination is the cupellation method. However, this method is not sufficiently accurate to determine gold karat in the presence of insoluble Platinum–Group Metals (PGMs), such as Ir, Ru, and Rh. In this study, for the first time, a complementary method that can be used coupled with the reference cupellation method is presented for the high...

Aroylphosphanes: base-free synthesis and their coordination chemistry with platinum-group metals

6,14-Dibromo-2,11-dithia­[3.3]paracyclo­phane

In the title compound, C(16)H(14)Br(2)S(2) [systematic name: 1(2),5(2)-dibromo-2,7-dithia-1,5(1,4)-dibenzenaocta-phane], the cen-troids of the two benzene rings are separated by 3.313 (5) Å. The crystal packing exhibits weak inter-molecular S⋯S contacts of 3.538 (2) Å.

5,8-Bis(3-hy­droxy-3-methyl­but-1-yn-1-yl)-2,11-dithia­[3.3]paracyclo­phane

IN THE CRYSTAL STRUCTURE OF THE TITLE COMPOUND [SYSTEMATIC NAME: 2,2'-dimethyl-4,4'-(3,10-dithia-tricyclo-[10.2.2.2(5,8)]octa-deca-1(14),5,7,12,15,17-hexaen-6,17-di-yl)dibut-3-yn-2-ol], C(26)H(28)O(2)S(2), mol-ecules are linked by O-H⋯O hydrogen bonds, forming a tubular chain which runs parallel to the b axis. The tubular structure is reinforced by π-π stacking inter-actions [centroid-centroid ...