Search Results - "Reddy, L. Sreenivas"
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The Role of π-Stacking in the Composition of Phloroglucinol and Phenazine Cocrystals
Published in Crystal growth & design (03-12-2008)“…Cocrystallization of phloroglucinol (PHG) and phenazine (Phen) afforded cocrystals of 1:1.5, 1:1.75, and 1:2 PHG·Phen stoichiometry upon grinding the two…”
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Cocrystals and Salts of Gabapentin: pH Dependent Cocrystal Stability and Solubility
Published in Crystal growth & design (07-01-2009)“…Thirteen new multicomponent crystals (cocrystals and salts) of an anticonvulsant drug gabapentin with various carboxylic acid coformers have been discovered…”
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Analysis of 50 Crystal Structures Containing Carbamazepine Using the Materials Module of Mercury CSD
Published in Crystal growth & design (01-04-2009)“…A set of 50 crystal structures containing the molecule carbamazepine (CBZ) have been analyzed using the Materials module within Mercury CSD 2.0. The similarity…”
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Journal Article -
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Polymorphs and Polymorphic Cocrystals of Temozolomide
Published in Chemistry, an Asian journal (07-07-2008)“…Crystal polymorphism in the antitumor drug temozolomide (TMZ), cocrystals of TMZ with 4,4′‐bipyridine‐N,N′‐dioxide (BPNO), and solid‐state stability were…”
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Halogen Trimer-Mediated Hexagonal Host Framework of 2,4,6-Tris(4-halophenoxy)-1,3,5-triazine. Supramolecular Isomerism from Hexagonal Channel (X = Cl, Br) to Cage Structure (X = I)
Published in Crystal growth & design (01-05-2005)“…The hexagonal layer structure of host atoms in chloro, bromo, and iodo derivatives of 2,4,6-tris(4-halophenoxy)-1,3,5-triazine, X-POT, is stabilized by a…”
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Journal Article -
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Searching for a Polymorph: Second Crystal Form of 6-Amino-2-Phenylsulfonylimino-1,2-Dihydropyridine
Published in Angewandte Chemie International Edition (29-04-2003)“…Too difficult to predict? The second polymorph of the title compound, is presented. A comparison of hydrogen‐bond patterns and lattice energies suggests that…”
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Amide−N-Oxide Heterosynthon and Amide Dimer Homosynthon in Cocrystals of Carboxamide Drugs and Pyridine N-Oxides
Published in Molecular pharmaceutics (01-05-2007)“…The carboxamide−pyridine N-oxide heterosynthon is sustained by syn(amide)N−H···O-(oxide) hydrogen bond and auxiliary (N-oxide)C−H···O(amide) interaction…”
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Journal Article -
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Role of Cocrystal and Solution Chemistry on the Formation and Stability of Cocrystals with Different Stoichiometry
Published in Crystal growth & design (04-02-2009)“…The objective of this study is to identify factors and conditions governing the formation and stability of cocrystals with different stoichiometry…”
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Journal Article -
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Carboxamide-pyridine N-oxide heterosynthon for crystal engineering and pharmaceutical cocrystals
Published in Chemical communications (Cambridge, England) (01-01-2006)“…The novel carboxamide-pyridine N-oxide synthon, sustained via N-H...O- hydrogen bonding and C-H...O interaction, is shown to assemble isonicotinamide N-oxide…”
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Journal Article -
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Crystal Structures of N-Aryl-N′-4-Nitrophenyl Ureas: Molecular Conformation and Weak Interactions Direct the Strong Hydrogen Bond Synthon
Published in Crystal growth & design (01-12-2007)“…Hydrogen bond competition was studied in 21 X-ray crystal structures of N-X-phenyl-N′-p-nitrophenyl urea compounds (X = H, F, Cl, Br, I, CN, C≡CH, CONH2,…”
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Phenyl-Perfluorophenyl Synthon Mediated Cocrystallization of Carboxylic Acids and Amides
Published in Crystal growth & design (01-01-2004)“…The significance of face-to-face π−π stacking of phenyl and perfluorophenyl rings (Ph-PhF), a robust supramolecular synthon in aromatic and perfluoroaromatic…”
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Variable-Temperature Powder X-ray Diffraction of Aromatic Carboxylic Acid and Carboxamide Cocrystals
Published in Chemistry, an Asian journal (02-04-2007)“…The effect of temperature on the cocrystallization of benzoic acid (BA), pentafluorobenzoic acid (FBA), benzamide (BAm), and pentafluorobenzamide (FBAm) is…”
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Structural Variations and Polymorphism of Some Derivatives of 6-Amino-2-phenylsulfonylimino- 1,2-dihydropyridine
Published in Crystal growth & design (01-07-2004)“…Following up from a study of polymorphism in the title compound, 6-amino-2-phenylsulfonylimino-1,2-dihydropyridine, 12 phenyl-substituted derivatives were…”
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Journal Article -
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Hydrogen Bonding in Crystal Structures of N,N‘-Bis(3-pyridyl)urea. Why Is the N−H···O Tape Synthon Absent in Diaryl Ureas with Electron-Withdrawing Groups?
Published in Crystal growth & design (2006)“…The urea tape α-network of bifurcated N−H···O hydrogen bonds is a common motif in diaryl ureas and their molecular complexes. We analyzed the X-ray crystal…”
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Cover Picture: Polymorphs and Polymorphic Cocrystals of Temozolomide (Chem. Asian J. 7/2008)
Published in Chemistry, an Asian journal (07-07-2008)Get full text
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Auf der Suche nach einem Polymorph: eine zweite Kristallform von 6‐Amino‐2‐phenylsulfonylimino‐1,2‐dihydropyridin
Published in Angewandte Chemie (29-04-2003)“…Vorhersage zu schwierig? Beschrieben wird ein zweites Polymorph der für eine Kristallstrukturvorhersage (CSP) ausgewählten Titelverbindung. Einer Analyse der…”
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Journal Article -
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Auf der Suche nach einem Polymorph: eine zweite Kristallform von 6-Amino-2-phenylsulfonylimino-1,2-dihydropyridin
Published in Angewandte Chemie (29-04-2003)Get full text
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