Abstract
The lithium(I) catena-diaquabarbiturate complex [Li(H2O)2(HBA–O,O′)] n (I), where Н2ВА is barbituric acid, has been structurally characterized by X-ray diffraction (CIF file CCDC no. 1447689), and its thermal decomposition and IR spectrum have been studied. Crystals of complex I are monoclinic, a = 6.4306(7) Å, b = 16.720(1) Å, c = 7.1732(8) Å, β = 108.253(4)°, V = 732.5(1) Å3, space group P21/c, and Z = 4. One independent μ2-bridging HBA– ligand is coordinated to two Li(I) ions via the two oxygen atoms of C4(6)=O carbonyl groups. Each Li+ ion is linked with two μ2-HBA– ions and two terminal water molecules at tetrahedron vertices. μ2-HBA– ions link tetrahedra into a chain. The structure is stabilized by multiple hydrogen bonds and π–π-interaction between HBA–. The shift of ν(C=O) vibration bands in the IR spectrum of complex I in comparison with Н2ВА towards lower frequencies agrees with the coordination of HBA– via oxygen atoms. The dehydration of complex I occurs in two stages in the regions of 100–150 and 150–240°C.
Similar content being viewed by others
References
K. M. Fromm, Coord. Chem. Rev. 252, 856 (2008).
A. R. Kennedy, J. B. A. Kirkhouse, and L. Whyte, Inorg. Chem. 45, 2965 (2006).
U. Olsher, R. M. Izatt, J. S. Bradshaw, and N. K. Dalley, Chem. Rev. 91, 137 (1991).
N. J. Birch, Chem. Rev. 99, 2659 (1999).
Y. Li, J. Yang, and J. Song, Renew. Sustain. En. Rev. 54, 1250 (2016).
Biological Inorganic Chemistry: Structure and Reactivity, Ed. by I. Bertini, H. B. Gray, E. I. Stiefel, and J. S. Valentine (Univ. Sci. Books, Mill Valley, CA, 2007), Vol. 1.
J. H. Block and J. M. Beale, Wilson and Gisvold’s Textbook of Organic Medicinal and Pharmaceutical Chemistry, 11th ed. (Lippincott Williams and Wilkins, Philadelphia, 2004).
K. T. Mahmudov, M. N. Kopylovich, A. M. Maharramov, et al., Coord. Chem. Rev. 265, 1 (2014).
E. A. Wayner, G. Singer, M. Wayner, and F. Barone, Pharm. Biochem. Behav. 12, 803 (1980).
G. M. Sheldrick, SHELXTL. Version 6.10 (Bruker, Madison (WI, USA) 2004).
Cambridge Structural Database. Version 5.36 (Univ. of Cambridge, Cambridge, 2004).
M. U. Schmidt, J. Bruning, J. Glinnemann, et al., Angew. Chem., Int. Ed. Engl. 50, 7924 (2011).
T. C. Lewis, D. A. Tocher, and S. L. Price, Cryst. Growth Des. 4, 979 (2004).
M. R. Chierotti, K. Gaglioti, R. Gobetto, et al., CrystEngComm 15, 7598 (2013).
M. Gryl and K. Stadnicka, Acta Crystallogr., Sect. E 67, m571 (2011).
D. Braga, F. Grepioni, G. I. Lampronti, et al., Cryst. Growth Des. 11, 5621 (2011).
D. Braga, F. Grepioni, L. Maini, et al., CrystEng-Comm. 14, 3521 (2012).
N. N. Golovnev and M. S. Molokeev, Acta Crystallogr., Sect. C 69, 704 (2013).
N. N. Golovnev, M. S. Molokeev, S. N. Vereshchagin, et al., Polyhedron 85, 493 (2015).
J. W. Steed and J. L. Atwood, Supramolecular Chemistry, 1st Ed. (CRC Press, 2004; IKTs Akademkniga).
PLATON. A Multipurpose Crystallographic Tool (Utrecht Univ., Utrecht, 2008).
N. A. Smorygo and B. A. Ivin, Khim. Geterotsikl. Soedin. 10, 1402 (1975).
M. V. Roux, M. Temprado, R. Notario, et al., J. Phys. Chem. A 112, 7455 (2008).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © N.N. Golovnev, M.S. Molokeev, M.K. Lesnikov, S.N. Vereshchagin, 2017, published in Zhurnal Neorganicheskoi Khimii, 2017, Vol. 62, No. 6, pp. 761–765.
Rights and permissions
About this article
Cite this article
Golovnev, N.N., Molokeev, M.S., Lesnikov, M.K. et al. Polymeric lithium(I) diaquabarbiturate: Crystal structure. Russ. J. Inorg. Chem. 62, 746–750 (2017). https://doi.org/10.1134/S0036023617060092
Received:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0036023617060092