The two achiral ligands tris(1-methyl-1H-imidazol-2-yl)methanol ((mim)3COH) and bis(1-methyl-1H-imidazol-2-yl)(3-methylpyridin-2-yl)methanol ((mim)2(mpy)COH) form on reaction with Fe(BF4)2∙6H2O, the octahedral low-spin complexes [Fe((mim)3COH)2](BF4)2∙MeCN (1) [Fe((mim)2(mpy)COH)2](BF4)2∙0.5MeCN (2). Both immediately rearrange to chiral [Fe4O4]-cubane clusters [Fe4(mim)3CO)4](BF4)4 (3) [Fe4(mim...

The title compound, [Co(C(18)H(23)N(10))](BF(4))(2) x H(2)O, is the result of complexing a Co cation (initially in a Co(II) state) with tris[2-(1H-imidazol-2-ylmethyleneamino)ethyl]amine (L), obtained by a condensation process involving imidazole-2-carbaldehyde and tris(2-aminoethyl)amine. Both the Co cation and the ligand were modified in the synthesis process, the cation via oxidation to Co(I...

In the title compound, [Cu(CH3COO)2(C9H8N2O)2] n , the CuII ion resides on a centre of inversion, displaying a tetra-gonally distorted octa-hedral coordination environment defined by two pairs of N and O atoms of symmetry-related 4-(1H-imidazol-1-yl)phenol ligands and the O atoms of two symmetry-related acetate ligands. The bridging mode of the 4-(1H-imidazol-1-yl)phenol ligands is associated w...

In the title complex, {[Cu(C11H16N4)2(H2O)2](C10H6O6S2)} n , the Cu(II) atom, lying on an inversion center, is six-coordinated by two water mol-ecules and four N atoms from four 1,5-bis-(1H-imidazol-1-yl)pentane (biim-5) ligands in a distorted octa-hedral geometry. Adjacent Cu(II) atoms are linked by two biim-5 ligands, forming a chain along [111]. Two atoms of the pentane group are disordered ...

In the title complex, [Co(C(13)H(14)N(3)O(3))(2)(H(2)O)(2)], the Co(II) atom has a distorted octa-hedral coordination, formed by four N atoms from two (±)-2-(5-isopropyl-5-methyl-4-oxo-4,5-dihydro-1H-imidazol-2-yl)nicotinate ligands and two O atoms from two water mol-ecules. Intra-molecular N-H⋯O and O-H⋯O hydrogen bonds are present. In the crystal, inter-molecular O-H⋯O hydrogen bonds link the...

A simple approach was developed for the synthesis of methyl 4-imidazolylpyrrole-2-carboxylates from easily available compounds, 5-methoxyisoxazoles and phenacylimidazolium salts under hybrid Fe(II)/Et3N relay catalysis. The products were easily transformed into the corresponding 3-(5-methoxycarbonyl-1H-imidazol-3-ium-3-yl)pyrrol-1-ides, which in turn can be hydrolyzed under basic conditions int...