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Powder X-ray data for melatonin C13H16N2O2

Published online by Cambridge University Press:  10 January 2013

Ruggero Caminiti ,
Giancarlo Ortaggi ,
Raffaele Antonio Mazzei ,
Paolo Ballirano  and
Rita Rizzi
Ruggero Caminiti*
Affiliation:
Dipartimento di Chimica, Istituto Nazionale per la Fisica della Materia, Università di Roma “La Sapienza,” Piazzale Aldo Moro 5, Roma, I-00185, Italy
Giancarlo Ortaggi
Affiliation:
Dipartimento di Chimica, Istituto Nazionale per la Fisica della Materia, Università di Roma “La Sapienza,” Piazzale Aldo Moro 5, Roma, I-00185, Italy
Raffaele Antonio Mazzei
Affiliation:
Dipartimento di Chimica, Istituto Nazionale per la Fisica della Materia, Università di Roma “La Sapienza,” Piazzale Aldo Moro 5, Roma, I-00185, Italy
Paolo Ballirano
Affiliation:
Dipartimento di Scienze della Terra, Università di Roma “La Sapienza,” Piazzale Aldo Moro 5, Roma, I-00185, Italy
Rita Rizzi
Affiliation:
RF snc, Via Larga 47, Bologna, I-40138, Italy
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

Powder X-ray diffraction data of melatonin C13H16N2O2 were collected on a conventional X-ray powder diffractometer: the monoclinic cell parameter are a=7.7416(8) Å, b=9.2897(9) Å, c=17.1444(16) Å, β=96.756(9)°, volume 1224.4(3) Å3 (space group P21/c). The strongest lines are (d (Å), I/I0) 8.161 (100), 5.411 Å (46), 3.412 Å (34), 4.668 Å (33), 4.645 Å (25), 3.554 Å (22), 3.668 Å (16), and 4.483 Å (14). Reported intensities are validated by Rietveld analysis. The data consist of measured positions and intensities and cover an angular range up to 60° 2θ: experimental, calculated, and difference patterns are also reported.

Keywords

melatoninC13H16N2O2,Rietveld refinementpowder diffraction
Type
New Diffraction Data
Information
Powder Diffraction , Volume 15 , Issue 2 , June 2000 , pp. 108 - 111
Copyright
Copyright © Cambridge University Press 2000

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References

Arendt, J. (1991). “Melatonin in humans: Jet-lag and after,” Adv. Pineal Res. 5, 299.Google Scholar
Bunge, H.-J. (1982). Texture Analysis in Materials Science (Butterworth, London).Google Scholar
de Wolff, P. M. (1968). “A simplified criterion for the reliability of a powder-pattern indexing,” J. Appl. Crystallogr. 1, 108.Google Scholar
Finger, L. W., Cox, D. E., and Jephcoat, A. P. (1994). “A correction for powder diffraction peak asymmetry due to axial divergence,” J. Appl. Crystallogr. 27, 892.Google Scholar
Garvey, R. G. (1986). “LSUCRIPC, Least squares unit-cell refinement with indexing on the personal computer,” Powder Diffr. 1, 89.Google Scholar
Guardiola-Lemaître, B. (1991). “Development of melatonin analogues,” Adv. Pineal Res. 5, 351.Google Scholar
Holmes, S. W., and Sugden, D. (1982). “Effects of melatonin on sleep and neurochemistry in the rat,” Br. J. Pharmacol. 76, 95.CrossRefGoogle ScholarPubMed
Klein, D. C., Moore, R. Y., and Reppert, S. M. (1992). Suprachiasmatic nucleus: The mind's clock (Oxford University Press, New York), 484 pp.Google Scholar
Larson, A. C., and Von Dreele, R. B. (1985). “GSAS: General Structure Analysis System,” LAUR 86-748, Los Alamos National Laboratory, Copyright, 1985–1994, The Regents of the University of California.Google Scholar
Lerner, A. B., Case, J. D., Takahashi, Y., Lee, T. H., and Mori, W. (1958). “Isolation of melatonin, the pineal gland factor that lightens melanocytes,” J. Am. Chem. Soc. 80, 2587.Google Scholar
Maestroni, G. J. M., and Conti, A. (1993). Melatonin and the Pineal Gland (Elsevier, New York), pp. 295–302.Google Scholar
Smith, G. S., and Snyder, R. L. (1979). “FN: A criterion for rating powder diffraction patterns and evaluating the reliability of powder-pattern indexing,” J. Appl. Crystallogr. 12, 60.Google Scholar
Von Dreele, R. B. (1997). “Quantitative texture analysis by Rietveld refinement,” J. Appl. Crystallogr. 30, 517.Google Scholar
Wakahara, A., Fujiwara, T., and Tomita, K. (1972). “The crystal and molecular structure of melatonin, n-acetyl-5-methoxytryptamine,” Chem. Lett. 1972, 1139.Google Scholar
Wilson, A. J. C. (1963). Mathematical Theory of X-Ray Powder Diffractometry (Philips Technical Library, Eindhoven), 128 pp.Google Scholar
Young, R. A. (ed.) (1993). The Rietveld Method (Oxford Science, New York), 298 pp.Google Scholar