Transition-Metal Complexes with the Novel Poly (1,2,4-triazolyl)borate Ligands [HnB(C2H2N3)4 − n]− (n = 1 and 2): Synthesis and Characterization of Metal Complexes of Dihydrobis(1,2,4-triazolyl)borate as One- or Two-Dimensional Coordination Polymers with Six-Membered Ring Water Substructures and the Structure of Two-Dimensional Liquid and Solid Water As Organized in the Intercalate [Ni{HB(C2H2N3)3}2] · 6 H2O (X-ray Studies at 293 and 160 K)