One-dimensional zinc phosphates with linear chain structure

Three one-dimensional zinc phosphates, [C5N2H14][Zn(HPO4)(2)], I, [C10N4H26 ][Zn(HPO4)(2)].2H(2)O II, and [C4N2H6](2)[Zn(HPO4)], m, have been prepared employing hydro/solvothermal methods in the presence of organic amines. Whi le I and II consist of Linear chains of corner-shared four-membered rings, III is a polymeric wire where the amine molecule is directly bonded to the metal center. The wire, as well as the chain in these structures, are held together by hydrogen bond interactions involving the amine and the framewor k oxygens. The polymeric zinc phosphate with wire-like architecture, m, is only the second example of such architecture. Crystal data: I, monoclinic, P2(1)/c (no. 14), a=8.603(2), b=13.529(2), c=10.880(1) Angstrom beta =94.9( 1)degrees, V= 1261.6(1) Angstrom (3), Z= 4, rho (calc) = 1.893 gcm - 3, mu (MoK alpha) = 2.234 mm(-1), R-1 = 0.032, wR(2) = 0.086, [1532 observed refl ections with I > 2 sigma (I)], II, orthorhombic, Pbca (no. 61), a = 8.393(1 ), b = 15.286(1), c = 22.65961) Angstrom V= 2906.9(2) Angstrom (3), Z= g, r ho (calc). = 1.794 gcm(-3), mu (MoK alpha) = 1.957 mm(-1), R-1 = 0.055, wR( 2) = 0.11, [1565 observed reflections with I > 2 sigma (I) and III, monocli nic, P2(1)/c (no. 14), a = 8.241(1), b = 13.750(2), c = 10.572(1) Angstrom, beta = 90.9(1)degrees, V= 1197.7(2) Angstrom (3), Z= 4, rho (calc) = 1.805 gcm(-3) (MoK alpha) = 2.197 mm(-1), R-1 = 0.036, wR(2) = 0.10, [1423 obser ved reflections with I > 2 sigma (I)]. (C) 2001 Elsevier Science Ltd. All r ights reserved.