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Powder diffraction investigations of naphthalenesulfonic acids and their complexes with DMAN

Published online by Cambridge University Press:  05 March 2012

A. Rafalska-Lasocha ,
M. Grzywa ,
B. Włodarczyk-Gajda  and
W. Lasocha
A. Rafalska-Lasocha
Affiliation:
Faculty of Chemistry Jagiellonian University, Ingardena 3. 30-060, Krako´w, Poland
M. Grzywa
Affiliation:
Faculty of Chemistry Jagiellonian University, Ingardena 3. 30-060, Krako´w, Poland
B. Włodarczyk-Gajda
Affiliation:
Faculty of Chemistry Jagiellonian University, Ingardena 3. 30-060, Krako´w, Poland
W. Lasocha*
Affiliation:
Faculty of Chemistry Jagiellonian University, Ingardena 3. 30-060, Krako´w, Poland
*
a)Author to whom correspondence should be addressed. Electronic mail: [email protected]
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Abstract

The X-ray diffraction patterns of two organic acids 1-naphthalenesulfonic acid dihydrate and 2-naphthalenesulfonic acid hydrate were measured at room temperature. Complexes of these acids with 1,8-bis(dimethylamino)naphthalene (DMAN) were synthesized, purified and investigated by means of X-ray powder diffraction. 1-Naphthalenesulfonic acid dihydrate as well as its complex with 1,8-bis(dimethylamino)naphthalene crystallize in the monoclinic system with unit cell parameters refined to a=0.91531(8) nm, b=0.7919(1) nm, c=0.8184(1) nm, β=101.618(9)° space group P21/m (11) and a=1.7781(4) nm, b=2.0122(4) nm, c=1.2337(2) nm, β=96.54(3)°, space group C2/m (12), respectively. 2-Naphthalenesulfonic acid hydrate crystallizes in the orthorhombic system with a=2.2749(3) nm, b=0.7745(1) nm, c=0.591 36(9) nm, space group Pnma, whereas its complex with 1,8-bis(dimethylamino)naphthalene crystallizes in the triclinic system a=1.3969(6) nm, b=1.4292(5) nm, c=1.1741(6) nm, α=90.93(3)°, β=98.14(3)°, γ=113.93(3)°, space group P-1 (2).

Keywords

X-ray powder diffractionnaphthalenesulfonic acidsDMAN
Type
New Diffraction Data
Information
Powder Diffraction , Volume 19 , Issue 4 , December 2004 , pp. 378 - 384
Copyright
Copyright © Cambridge University Press 2004

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