S. Athimoolam

Publications86
h-index12
Citations393
Highly Influential Citations12
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4-Carboxyanilinium (2R,3R)-tartrate and a redetermination of the alpha-polymorph of 4-aminobenzoic acid.
In the title compounds, 4-carboxyanilinium (2R,3R)-tartrate, C(7)H(8)NO(2)+.C(4)H(5)O(6)-, (I), and 4-aminobenzoic acid, C(7)H(7)NO(2), (II), the carboxyl planes of the 4-carboxyanilinium… Expand
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Crystal growth and structure of L-methionine L-methioninium hydrogen maleate—a new NLO material
Abstract A new organic nonlinear optical (NLO) crystal from the amino acid family, viz., L-methionine L-methioninium hydrogen maleate (LMMM), has been grown by slow evaporation method from aqueous… Expand
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L-prolinium picrate and 2-methylpyridinium picrate.
In the structure of L-prolinium picrate, C5H10NO2+.C6H2N3O7-, the Cgamma atom of the pyrrolidine ring has conformational disorder. Both the major and minor conformers of the pyrrolidine ring adopt… Expand
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Bis(nicotinamidium) bis­[(2R,3R)‐tartrate] 1.25‐hydrate: cations incorporated into hydrogen‐bonded arrays of anions and water mol­ecules
In the title compound, 2C(6)H(7)N(2)O(+.)2C(4)H(5)O(6)(-.)1.25H(2)O, the carboxamide planes of the cations are twisted relative to the pyridine rings. The crystal structure is stabilized by an… Expand
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Chain and ring motifs in bis­(creatininium) sulfate
The title compound, 2C4H8N3O+·SO42−, crystallizes with two creatininium cations and one sulfate anion in the asymmetric unit. Cations and anions dimerize through N—H⋯O hydrogen bonds forming R22(8)… Expand
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(E)-3-(4-Chlorophenyl)-3-[3-(4-chlorophenyl)-1H-pyrazol-1-yl]prop-2-enal
TLDR
In the title compound, C18H12Cl2N2O, the pyrazole ring is almost planar [r.m.s. deviation = 0.002 Å] while the two chlorophenyl rings are twisted out from the plane of the ring, making dihedral angles of 5.3 (1) and 65.34  (4)°. Expand
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l-Ornithinium sulfate monohydrate
In the title compound, C5H14N2O22+·SO42−·H2O, the ornithinium cation forms a strong O—H⋯O hydrogen bond with the sulfate anion. One backbone conformation angle is in an eclipsed conformation, while… Expand
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Hydrogen-bonding motifs in 4-carboxyphenylammonium nitrate and perchlorate monohydrate, and in bis(4-carboxyphenylammonium) sulfate.
In the title compounds, C7H8NO2+.NO3-, (I), C7H8NO2+.ClO4-.H2O, (II), and 2C7H8NO2+.SO4(2-), (III), the carboxyl planes of the 4-carboxyphenylammonium cations are twisted from the aromatic plane. A… Expand
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l-Asparaginium picrate
In the title compound, C4H9N2O3+·C6H2N3O7−, the two ions are connected by strong asymmetric O—H⋯O hydrogen bonds. The cation is involved in a Z1 (zigzag) head-to-tail sequence along the b axis. The… Expand
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Divergent Reactivity of Amino Acid Alkyl Ester Hydrochlorides with 2-Oxoaldehydes: Role of Selenium Dioxide To Promote Regioselective Synthesis of Imidazoles.
Novel amino acid substituted imidazoles engendered from amino acid alkyl ester hydrochlorides and 2-oxoaldehydes as a result of selenium dioxide promoted unconventional reaction in a basic… Expand
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