Abstract
The crystalline complex dipotassium 1,3-diammonio-2-propanone tetrachloroplatinate trihydrate, formulated as K2[(NH3CH2C)2O][PtCl4]2 · 3H2O, has been prepared while synthesizing complexes analogous tocis-dichlorodiamine Pt(II). Its structure is orthorhombic, space groupPnma,M r = 896.1,F(000) = 1640,a = 8.428(4),b = 20.360(10),c = 12.141(7)A,V = 2083.3Å3,Z = 4,D x = 2.860 g cm−3, μ(MoK x) = 196 cm−1, finalR = 0.083 for 1379 unique reflections. The structure consists of a very extended hydrogen bonded network which involves half of the PtCl4 2− ions, the organic molecules and the water molecules of hydration, leaving large oval channels which accommodate potassium cations and tetrachloroplatinate anions. Within the channel the potassium and tetrachloroplatinate ions pack in columns extending along the a axis. The dense packing is rather reminiscent of that found in the neat salt where each potassium ion is surrounded by six chlorine atoms which describe a polyhedron of a distorted trigonal prism with K+ —C1 distances ranging between 3.163–3.187 Å. There is some indirect evidence for the formation of 1,3-diammonio-2-propanone dications which counterbalance the charges of half of the PtCl4 2− ions by protonation of each of the amino nitrogens. The carbonyl oxygens, however, are involved only in a very weak O-C-O interactions along thea axis.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
S. Mansy, B. Rosenberg and A. J. Thomson:J. Am. Chem. Soc. 95, 1633 (1973).
M. Cais inNon-isotopic Immunoassay (T. T. Ngo, Ed.,) pp. 415–438, Plenum Press, New York, N.Y. (1988). (b) M. Cais, D. Cwikel, 1. Agmon and M. Kapon:XXIVth LC.C.C. Athens, August 24-29th (1986), Book of Abstracts, E3-820.
G. M. Sheldrick:SHELX 77: Program for Crystal Structure Determination, University Chemical Laboratory, Cambridge, England, 1977.
C. K. Johnson:ORTEP. Report ORNL-3794, Oak Ridge, National Laboratory, TN 1965.
R. W. G. Wyckoff:Crystal Structures Vol. 3, pp. 69–70, John Wiley and Sons Inc., (1964).
J. A. J. Jarvis, B. T. Kilbourn and P. G. Owston:Acta Crystallogr. B27, 366 (1971).
J. Britten and C. J. L. Lock:Acta Crystallogr. B35, 3065 (1979).
L. G. Purnell and D. J. Hodgson:J. Am. Chem. Soc. 98, 4759 (1976).
E. H. Griffith and E. L. Amma:J. Chem. Soc. Chem. Commun. 322 (1979).
J. D. Dunitz:X-ray Analysis and the Structure of Organic Molecules, pp. 376–384, Cornell University Press, Ithaca, N.Y. (1979).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Kapon, M., Cwikel, D., Agmon, I. et al. Channel inclusion of potassium and tetrachloroplatinate ions in a complex formed between 1,3-diamino-2-propanone and K2PtCl4 in an acidic medium. J Incl Phenom Macrocycl Chem 10, 225–232 (1991). https://doi.org/10.1007/BF01066206
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF01066206