Crystal structure of bis((1-methylbenzimidazol-2-yl)methyl)amine, C18H19N5

C18H19N5, triclinic, P 1 ‾ $P\bar{1}$ (no. 2), a = 6.612(4) Å, b = 8.800(5) Å, c = 13.777(8) Å, α = 83.219(7)°, β = 79.329(6)°, γ = 78.744(6)°, V = 769.8(8) Å3, Z = 2, R gt (F) = 0.0394, wR ref (F 2) = 0.0996, T = 100(2) K.

Selective Oxygenation of C-H and C=C Bonds with H2O2 by High-Spin Cobalt(II)-Carboxylate Complexes

Four cobalt(II)-carboxylate complexes [(6-Me3-TPA)CoII(benzoate)](BPh4) (1), (6-Me3-TPA)CoII(benzilate)](ClO4) (2), [(6-Me3-TPA)CoII(mandelate)](BPh4) (3), and [(6-Me3-TPA)CoII(MPA)](BPh4) (4) (HMPA = 2-methoxy-2-phenylacetic acid) of the 6-Me3-TPA (tris((6-methylpyridin-2-yl)methyl)amine) ligand were isolated to investigate their ability in H2O2-dependent selective...

Synthesis of fused dihydrobenzo [4,5]imidazo[1,2-a]pyrmido[5,4-e]pyrmidin-3(4H)-amine derivatives

Some of fused dihydrobenzo [4,5]imidazo [1,2-a] pyrmido [5,4-e] pyrmidin-3(4H)-amine derivatives were synthesized, theses derivatives derived from 4-amino-2-(4-chloro or bromophenyl) -1,2-dihydropyrimido[1,2-a] benzimidazole-3-carbonitrile (4,5), which prepared by reaction 1H-benzimidazol-2-amine (1) and p-chlorobenzaldehyde or p-bromobenzaldehyde (2) and malononitrile (3). These derivatives prepared by reaction compound (4,5) with with triethylorthoformate in presence acetic anhydride to give the products (6,7), then the products was reacted with aliphatic amines (hydrazine, methyl amine, ethyl amine, propyl amine and isobutyl amine) to give pyrmidin rings (8-17) respectively. All these derivatives characterization by FT-IR , HNMR spectra and physical properties.

Crystal structure of {tris((1H-benzo[d]imidazol-2- yl)methyl)amine-κ 4 N,N′,N′′,N′′′}-(succinato-κ 2 O,O′)nickel(II) – methanol (1/4), C32H41N7NiO8

C32H41N7NiO8, monoclinic, P21/c (no. 14), a = 10.0076(5) Å, b = 18.6561(10) Å, c = 19.0893(18) Å, β = 108.532(6)°, V = 3378.4(4) Å3, Z = 4, Rgt (F) = 0.0607, wRref (F 2) = 0.1340, T = 111.9(1) K.

Synthesis, structures, and catalytic efficiency in ring opening polymerization of rac-lactide with tridentate vs. bidentate cobalt(ii), zinc(ii), and cadmium(ii) complexes containing N-substituted N,N-bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)amine ligands

Co(ii), Zn(ii), and Cd(ii) complexes supported by bis-pyrazolyl ligands were applied to the ring-opening polymerization of rac-lactide to produce heterotactic polylactides (PLAs) with superior heterotactic bias i.e. Pr up to 0.94 at −25 °C.

Dinuclear Cobalt Complexes with Redox Active Biphenyl Bridging Ligand [Co2(BP)(tqa)2](PF6)2 (H4BP = 4,4’-bis(3-tert-butyl-1,2-catechol), tqa = tris(2-quinolylmethyl)amine): Structure and Magnetic Properties

The biscatechol, H4BP (4,4’-bis(3-tert-butyl-1,2-catechol)) that connects two redox active catechol moieties directly was synthesized. Also, tpa (tris(2-pyridylmethyl)amine), bpqa (bis(2-pyridylmethyl)(2-quinolylmethyl)amine), pbqa ((2-pyridylmethyl)bis(2-quinolyl methyl)amine), and tqa (tris(2-quinolylmethyl)amine) were synthesized as terminal ligands...