Design and synthesis of pyrazolo[3,4-d]pyrimidine and triazolo[4,5-d]pyrimidine based dissymmetrical ‘Leonard linker’ compounds: 1H NMR and crystallographic evidence for folded conformation due to arene interactions
Kamlakar Avasthi
Journal of Molecular Structure, 2007
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Design and Synthesis of Pyrazolo [3, 4-D] Pyrimidine Core Based Dissymmetrical [] Leonard Linker'Compounds: 1H NMR and Crystallographic Evidence for Folded …
Kamlakar Avasthi
Journal of Molecular …, 2006
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Design and Synthesis of Pyrazolo [3, 4-D] Pyrimidine and Triazolo [4, 5-D] Pyrimidine Based Dissymmetrical [] Leonard Linker'Compounds: 1H NMR and Crystallographic …
Kamlakar Avasthi
Journal of Molecular …, 2007
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Three substituted 4-pyrazolylbenzoates: hydrogen-bonded supramolecular structures in one, two and three dimensions
Jaime Portilla
Acta Crystallographica Section C Crystal Structure Communications, 2006
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1H NMR and X-Ray Crystallographic Analysis of 1, 2-Bis (4, 6-Diethylthio-1H-Pyrazolo [3, 4-D] Pyrimidin-1-Yl) Ethane and Its [] Propylene Linker'-Analog: Molecular …
Kamlakar Avasthi
Tetrahedron Letters, 2001
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Fine tuning of folded conformation by change of substituents: 1H NMR and crystallographic evidence for folded conformation due to arene interactions in pyrazolo[3,4-d]pyrimidine core based ‘propylene linker’ compounds
Professor Diwan S. Rawat
Journal of Molecular Structure, 2005
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Studies on arene interactions in flexible pyrazolo[3,4-d]pyrimidine core based symmetrical 'propylene/Leonard liner' models: X-ray crystallographic evidence for disappearance of intramolecular stacking due to presence of chloro- or cyano-groups in place of methylsulfanyl or alkoxy substituents
Kamlakar Avasthi
Journal of Molecular Structure, 2009
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1H NMR and X-ray crystallographic analysis of 1,2-bis(4,6-diethylthio-1H-pyrazolo[3,4-d]pyrimidin-1-yl)ethane and its ‘propylene linker’-analog: molecular recognition versus crystal engineering
Professor Diwan S. Rawat
Tetrahedron Letters, 2001
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A hydrogen-bonded chain of rings in 7-amino-5-tert-butyl-2-methylpyrazolo [1, 5-a] pyrimidine, and a hydrogen-bonded framework structure in 3, 7-diamino-2, 5- …
Jaime Portilla
… Section C: Crystal …, 2006
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Unusual Effect of Bulky Isopropyl Group on Robustness of the U-Motif In Pyrazolo [3, 4-D] Pyrimidine Core Based [] Leonard Linker'Compounds In Comparison to Methyl/ …
Kamlakar Avasthi
Journal of Molecular …, 2008
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Unusual molecular conformation in dissymmetric propylene-linker compounds containing pyrazolo[3,4-d]pyrimidine and phthalimide moieties
Umesh Yadava
Acta Crystallographica Section C Crystal Structure Communications, 2003
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A Dimeric Layered Structure of a 4-Oxo-4, 5-Dihydro-1H-Pyrazolo [3, 4-D] Pyrimidine Compound
Kamlakar Avasthi
… Section C: Crystal …, 2002
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2-(4-Chlorophenyl)-5-(4-nitrophenyl)-4,7-dihydropyrazolo[1,5- a ]pyrimidine-3,6-dicarbaldehyde: a chain of rings built from N—H...O and C—H...O hydrogen bonds
Jairo Quiroga
Acta Crystallographica Section C Crystal Structure Communications, 2008
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Supramolecular structures of five 5-(arylmethylene)-1,3-dimethylpyrimidine-2,4,6(1 H ,3 H ,5 H )-triones: isolated molecules, hydrogen-bonded chains and chains of fused hydrogen-bonded rings
James Wardell
Acta Crystallographica Section C Crystal Structure Communications, 2005
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Fine Tuning of Folded Conformation by Change of Substituents: 1H NMR and Crystallographic Evidence for Folded Conformation Due to Arene Interactions In Pyrazolo [3, 4 …
Kamlakar Avasthi
Journal of Molecular …, 2005
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Folded conformations due to arene interactions in dissymmetric and symmetric butylidene-linker models based on pyrazolo[3,4- d ]pyrimidine, purine and 7-deazapurine
Kamlakar Avasthi
Acta Crystallographica Section C Structural Chemistry, 2014
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Crystal structure of 4-benzoyl-3-methyl-1-phenyl-2-pyrazolin-5-one sulfadiazine dimethylformamide monosolvate, C30H29N7O4S
Eric Hosten
Zeitschrift für Kristallographie - New Crystal Structures, 2014
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Design, syntheses, and crystal engineering of versatile supramolecular reagents
Joaquin Urbina
2005
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Recurrent Supramolecular Motifs in a Series of Acid–Base Adducts Based on Pyridine-2,5-Dicarboxylic Acid N-Oxide and Organic Bases: Inter- and Intramolecular Hydrogen Bonding
Fereshteh Sadeghi
Crystal Growth & Design, 2020
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Heterocyclic Supramolecules II
Naoto Hayashi
Topics in Heterocyclic Chemistry, 2009
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Crystal and Molecular Structure of 12-(2-Methoxyphenyl)-9-[(4- methylbenzene)sulfonyl]-22-oxo-13,21-dioxa-9-azapentacyclo [12.8.0.02,11.03,8.015,20]docosa-1(14),3,5,7,15(20),16,18-heptaene-11-carbonitrile
Kannan Damodharan
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A Stacked Pyrazolo[3,4-d]pyrimidine-Based Flexible Molecule
Professor Diwan S. Rawat
Acta Crystallographica Section C-crystal Structure Communications, 1998
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Four N 7 -alkoxybenzyl-substituted 4,5,6,7-tetrahydro-1 H -pyrazolo[3,4- b ]pyridine-5-spiro-1′-cyclohexane-2′,6′-diones: hydrogen-bonded supramolecular structures in zero, one, two or three dimensions
Jairo Quiroga
Acta Crystallographica Section C Crystal Structure Communications, 2008
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1,3-Dimethyl-4-phenylsulfanyl-1H pyrazol-5-ol Tara Shahani, Hoong-Kun Fun, R. Venkat Ragavan,V. Vijayakumar and S. Sarveswari, Acta Cryst. (2011). E67, o633
V Vijayakumar
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Supramolecular aggregation in three 4-aryl-6-(1H-indol-3-yl)-3-methyl-1-phenyl-1H-pyrazolo[3,4-b]pyridine-5-carbonitriles
Jorge Trilleras
Acta crystallographica. Section C, Crystal structure communications, 2007
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Isomeric pyrazolo[3,4- d ]pyrimidine-based molecules: disappearance of dimerization due to interchanged substitutions
Professor Diwan S. Rawat
Acta Crystallographica Section C Crystal Structure Communications, 2002
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Studies on arene interactions in flexible pyrazolo [3, 4-d] pyrimidine core based symmetrical [] propylene/Leonard linker'models: X-ray crystallographic evidence for …
Kamlakar Avasthi
Journal of Molecular …, 2009
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A second monoclinic polymorph of 6-amino-1,3-dimethyl-5-[(E)-2-(methylsulfanyl)benzylideneamino]pyrimidine-2,4(1H,3H)-dione
muhammed ismail
Acta Crystallographica Section E Structure Reports Online, 2011
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Crystal Structure of the Chiral Azomethine Imine, (Z)-(S)-4-(tert-Butylcarbonylamino)-2-(2-methoxybenzylidene)-5-oxopyrazolidin-2-ium-1-ide, Obtained by the Cyclization of tert-Butyl (S)-2-[2-(methoxybenzylidene)hydrazine]-1-(hydroxymethyl)-2-oxocarbamate
James Wardell
Journal of Chemical Crystallography
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Supramolecular Interactions Involved in the Solid State Structure of N,N'-[bis(pyridin-2-yl)formylidene]ethane-1,2-diamine
Solhe Alshahateet
Croatica Chemica Acta, 2014
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