6-(1-Methylpyrrol-2-yl)-2,2'-bipyridine, 3, and 6-(selenophene-2-yl)-2,2'-bipyridine, 4, have been prepared and characterized in solution and by structural determinations. Copper(I) complexes [CuL(2)][PF(6)] in which L is 2,2'-bipyridine substituted in the 6-position by furyl, thienyl, N-methylpyrrolyl, selenopheneyl, methyl or phenyl, (L = 1-6) have been synthesized. The complexes have been ch...

ABSTRACT A series of novel 1,2,4-thiadiazine 1,1-dioxides were synthesized by condensation of 2-chlorobenzenesulfonamide and 4-chloropyridine-3-sulfonamide with heterocyclic methyl carbimidates obtained from heterocyclic carbonitriles and used at the time of their creation. Substituted amidines were isolated as the intermediates in the reaction with 2-chlorobenzenesulfonamide. Those intermediat...

The title compound, [Yb(2)(CF(3)O(3)S)(C(10)H(15))(2)(OH)(2)(C(12)H(12)N(2))(2)](C(24)H(20)B)·C(12)H(12)N(2), crystallizes as a half-sandwich complex with a bridging trifluoro-methane-sulfonate as well as two bridging hydroxide groups. The bound bipyridine ligands have N-C-C-N torsion angles of 13.1 (9) and -12.1 (8)°. The structure also contains an uncoordinated 5,5'-dimethyl-2,2'-bipyridine m...

In the presence of ammonia, the reactions of cyanamide and Cu(II) ions with different organic blocking ligands afford three hydrogencyanamido bridged dinuclear complexes: [(dmbpy)(4)Cu(2)(HNCN)](ClO(4))(3)·H(2)O (1, dmbpy = 4,4'-dimethyl-2,2'-bipyridine), [(phen)(4)Cu(2)(HNCN)](ClO(4))(3)·2H(2)O (2, phen = 1,10-phenanthroline) and [(bpy)(2)Cu(2)(HNCN)(2)(ClO(4))(2)] (3, bpy = 2,2'-bipyridine), ...

The stannacarborane 1,2-mu-(CH(2))(3)-4,1,2-closo-SnC(2)B(10)H(10) (1) and its adducts with 2,2'-bipyridine (bipy), 1,10-phenanthroline (o-phen) and 4,4'-diphenyl-2,2'-bipyridine (Ph(2)bipy), 1,2-mu-(CH(2))(3)-4-(bipy)-4,1,2-closo-SnC(2)B(10)H(10) (2), 1,2-mu-(CH(2))(3)-4-(o-phen)-4,1,2-closo-SnC(2)B(10)H(10) (3) and 1,2-mu-(CH(2))(3)-4-(Ph(2)bipy)-4,1,2-closo-SnC(2)B(10)H(10) (4), respectively...

A series of novel 5-amino-7-aryl-7,8-dihydro-[1,2,4] triazolo[4,3-a]-pyrimidine-6-carbonitriles were synthesized by a one-pot reaction of 3-amino-1,2,4-triazole, malononitrile and aryl aldehydes in the presence of 20 mol% NaOH in ethanol under heating or ultrasonic irradiation. The structures of the target compounds were confirmed by inspection of their (1)H- NMR, (13)C-NMR, IR and MS spectra. ...

Splitting water into hydrogen and oxygen by dye-sensitized photoelectrochemical cell (DSPEC) is a promising approach to solar fuels production. In this study, series of pyridine derivatives as surface additives were modified on molecular chromophore oxidation catalyst co-loaded TiO2 photoanode, TiO2|RuP, 1 (RuP = Ru(4,4?-(PO3H2)2-2,2?-bipyridine)(2,2?-bipyridine)2, Ru(bda)(L)2, (bda 2,2?-bipyri...

In the title compound, {[Mn(C(15)H(8)O(7))(C(10)H(8)N(2))(H(2)O)(3)]·C(10)H(8)N(2)·2H(2)O}(n), the bridging mode of the coordinating 4,4'-bipyridine ligands leads to the formation of polymeric zigzag chains parallel to [0-11]. The chains are separated by 4,4'-bipyridine and water solvent mol-ecules. Within a chain, the Mn(II) atom is six-coordinated by two N atoms of the bridging 4,4'-bipyridin...