Two octanuclear gallium metallamacrocycles of topologically different connectivities.

Self-assembly of Ru4 and Ru8 assemblies by coordination using organometallic Ru(II)2 precursors: Synthesis, characterization and properties

Coordination-driven self-assembly of binuclear half-sandwich p-cymene ruthenium(II) complexes [Ru(2)(μ-η(4)-C(2)O(4))(MeOH)(2)(η(6)-p-cymene)(2)](O(3)SCF(3))(2) (1a) or [Ru(2)(μ-η(4)-N,N'-diphenyloxamidato)(MeOH)(2)(η(6)-p-cymene)(2)](O(3)SCF(3))(2) (1b) separately with an imidazole-based tetratopic donor L in methanol affords two tetranuclear metallamacrocycles 2a and 2b, respectively. Convers...

Metalation studies of 3- and 4-pyridyloxycyclophosphazenes: metallamacrocycles to coordination polymers.

Pyridyloxy cyclophosphazenes, spiro-N3P3(O2C12H8)(O-C5H4N-3)4 (L1), dispiro-N3P3(O2C12H8)2(O-C5H4N-3)2 (L2) and dispiro-N3P3(O2C12H8)2(O-C5H4N-4)2 (L3) were prepared and characterized. The crystal structure of L1 was determined which showed that the cyclophosphazene ring is planar. The reaction of L1 with anhydrous copper(II) chloride or silver nitrate afforded L2M4 metallamacrocycles [{L1}2{Cl...

De novo design of constrained and sequence-independent peptide scaffolds with topologically-formidable disulfide connectivities† †Electronic supplementary information (ESI) available: Detailed experimental section, characterization of peptides, tryptic digestion HPLC and MS analysis of disulfide pairing in peptides (Fig. S1–S50). See DOI: 10.1039/c7sc03956e

اثر برهم‌کنش اسپین‌ مدار یکنواخت و میدان مغناطیسی یکنواخت بر خواص توپولوژیکی یک نانو سیم یک بعدی کوانتومی

We theoretically demonstrate the interplay of uniform spin-orbit coupling and uniform Zeeman magnetic field on the topological properties of one-dimensional double well nano wire which is known as Su-Schrieffer-Heeger (SSH) model. The system in the absence of Zeeman magnetic field and presence of uniform spin-orbit coupling exhibits topologically trivial/non–trivial insulator depending on the h...

Gallium extraction from Jajarm Bayer process liquor using micro-emulsions

Gallium extraction from Jajarm Bayer process liquor (Jajarm, Iran) was investigated using microemulsions. Also the behavior of aluminum was studied as an impurity. Kelex100 (4-ethyl, 1-methyl, 7-octyl, 8-hydroxyquinoleine), iso-decanol and n-butanol, and kerosene were used as the surfactant, co-surfactant, and oil phase, respectively. Ternary phase diagrams were produced using various co-surfac...