PENTAGONAL-BIPYRAMID GEOMETRY AND CADMIUM-113 NMR CHEMICAL SHIFTS: CRYSTAL STRUCTURES AND SOLUTION AND SOLID-STATE CADMIUM-113 NMR OF BIS(μ-O-HYDROXYBENZOATO)BIS(O-HYDROXYBENZOATO)TETRAAQUODICADMIUM(II) AND TRIS(PYRIDINE)BIS(O-HYDROXY