Tetraaquabis(D-camphor-10-sulfonato)calcium(II)

Abstract

The structure of the title compound, [Ca(C(10)H(15)O(4)S)(2)(H(2)O)(4)], is the first example in which two D-camphor-10-sulfonate anions are coordinated to a metal ion, in this case with direct Ca-O bonding. The molecule has crystallographically imposed twofold symmetry with the Ca atom on the twofold axis. Hydrogen bonds are formed between the coordinated water molecules and the O atoms of the SO(3)(-) groups of adjacent molecules, leading to the formation of a two-dimensional layered network. The compound displays sharp wavelength-selective transparency in the UV-visible spectrum, offering the potential for application as an optical filter.

Large Single Crystals of Isomorphous Hexaaquametal(II) d-Camphor-10-sulfonates

“…The packing in these solids was dominated by hydrogen bonding between the d -camphor-10-sulfonate anions and water molecules coordinated to the metal(II) ions, resulting in sheet formation (Table ). The sheets, with an ABA sequence (A = d -camphor-10 sulfonate anion; B = hexaaquametal(II) ion), were joined to each other by weak C−H···O hydrogen bonds in between the anions. , As in the lattices of the related Mg(II), Ni(II), Cu(II), Zn(II), and Cd(II) compounds, − the water sphere and the O atoms of the sulfonate groups were involved in a complex hydrogen-bonding network (Table , Figure ). In contrast to the structure of the Zn(II) complex, in which it was found that two water H atoms do not form hydrogen bonds, in the structures described here and in related M(II) complexes, all the water H atoms participate in hydrogen bonds.…”

“…In the late 1970s, the first crystal structure of the simple d -camphor-10-sulfonate of copper was established . In addition, to the best of our knowledge, only the crystal structures of Cu(II), Ni(II), Cd(II), Zn(II), Mg(II), and Ca(II) camphorsulfonates have hitherto been determined. − However, data concerning the crystal size and other physical properties, which could imply their potential usage, are scanty in the literature, except in the cases of magnesium and calcium. , There is a lot of published scientific work on growing and creating large crystals, some of them very inspiring − with the beauty and possible use of the compounds.…”

Chiral Plastic Crystal of Solid-State Dual Rotators

“…Chiral plastic crystals are important for fabricating plastic electronics. Camphorsulfonic acid with a highly acidic −SO 3 H group is known to exist as a stable anion species upon deprotonation, forming metal coordination complexes and cation–anion salts with metal ions and organic cations. − Yamada et al examined the correlation between the phase transition behavior and molecular dynamics of a 1:1 salt between tetraethylammonium (TEA + ) and D -camphorsulfonate. Solid-state 1 H NMR spectra revealed the thermally activated rotational dynamics of the methyl group at low temperatures and the swinging motion of the CA unit at high temperatures .…”

Synthesis and spectroscopic properties of large single-crystals of Pb(II), Hg(II) and Sr(II) methanesulfonato 1D coordination polymers

“…In order to realize further research and to develop on previous studies [17][18][19], the physical properties of three newly synthesized crystalline compounds with methanesulfonate as the anion are presented herein. Since within the previous series of synthesized compounds, their purpose was not emphasized, possible applications of the newly synthesized compounds as wide-range, transparent and cheap optical materials are presented.…”