Mono and bis hexamethylenetetramine iron(III) chloride, Fe(N C ,H ) CI (I) and Fe(N C ,H ) Cl (II) were synthesized by the reaction of iron(III) chloride and hexamethylenetetramine (HMTA) in chloroform. Chemical analysis and spectral results show the coordination of HMTA to the iron(III). Electronic transition spectra of compound I and I1 were also studied in coordinating and noncoordinatin...

The solvothermal in situ double cycloaddition reaction of 2-cyanopyrimidine, Cu(2)O and NaN(3) with aqueous ammonia additive generated a two dimensional copper(I) coordination polymer with 5-pyrimidyl-tetrazolate, 3,5-bispyrimidyl-1,2,4-triazolate and the cyano group as the ligands. This reaction can be tuned to yield two dimensional coordination polymers solely based on tetrazolate or 1,2,4-tr...

calcium dichloride tetra urea was prepared by the reaction of calcium chloride with urea in aqueous solution. the crystals are monoclinic, a= 7.633, b= 12.45 1, c= 8.118 ?,? = 113.17, z = 4, space group p 2,/a. the crystal structure was determined by single crystal x-ray methods and refined to r= 0.041. the calcium atoms are coordinated to four oxygen atoms of urea and to two chloride ions. the...

the reaction of pbci, with 1,4,10,13-tetra-oxa-7, 16-diaza-cyclooctadecane (l= c h n o ) yielded colourless crystals of lpbci . the complex crystallizes in monoclinic space group, c2/c, a = 7.90(2), b = 14.75(3) and c = 17.36(3) ?= ? 101.75(3)?, z = 4 and r = 0.083 the coordination number around the lead atom is eight . [pb-n, 2.36(1), 2.70(4)], [pb-0,2.41(3)-2.57(3)], [pb-ci, 2.51(4), 2.57(4)].

mono and bis hexamethylenetetramine iron(iii) chloride, fe(n c ,h ) ci (i) and fe(n c ,h ) cl (ii) were synthesized by the reaction of iron(iii) chloride and hexamethylenetetramine (hmta) in chloroform. chemical analysis and spectral results show the coordination of hmta to the iron(iii). electronic transition spectra of compound i and i1 were also studied in coordinating and noncoordinating so...

Three luminescent tetranuclear macrocycles are obtained selectively, applying coordination-driven supramolecular processes to the reaction of 3,3?-bipyridine ligand with in situ formed Cu(i) bimetallic units bearing a coordination angle ca. 120°.