0000000000048320

AUTHOR

S.k. Chawla

showing 11 related works from this author

Reversible dehydration polymerization of terephthalate bridged [{Cu2(2,2′-bpy)2(tp)(H2O)3(NO3)}·H2O·NO3]2

2006

The title compound is the first example of a molecular magnet sponge, which exhibits a carboxylate-assisted unique reversible dehydrative polymerization–rehydrative monomerization phenomenon.

PolymerizationMolecular magnetsChemistryPolymer chemistrymedicinemacromolecular substancesGeneral ChemistryDehydrationequipment and suppliesmedicine.diseasehuman activitiesMendeleev Communications
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Unique copper ion catalyzed hydrolytic cleavage of C–N(2) bond of thiosemicarbazide

2006

Abstract For the first time, stable but coordinatively unsaturated Cu(II) complexes [Cu(2,2′-bpy)X2] · xH2O (X = ClO4, NO3, CH3COO and 2,2′-bpy = 2,2′-bipyridyl) have been found to promote the hydrolysis of C–N(2) bond of thiosemicarbazide (tsc) at 25 °C and at neutral pH yielding monomeric [Cu(2,2′-bpy)(NCS)2]. Direct reaction between [Cu(2,2′-bpy)2]Cl2 · 6H2O, KSCN and CuCl2 results in polymeric [Cu(2,2′-bpy)(NCS)2]n [1] [Inorg. Chim. Acta. 286 (1999) 108]. Similarly tsc is cleaved by Cu(I) complex [Cu(ϕ3P)2(CH3CN)2]ClO4 [ϕ3P = triphenylphosphine] which itself is converted into dimeric [Cu(ϕ3P)2(NCS)]2.

ThiocyanateStereochemistrychemistry.chemical_elementCleavage (embryo)CopperMedicinal chemistryCatalysisInorganic Chemistrychemistry.chemical_compoundHydrolysisMonomerchemistryMaterials ChemistryPhysical and Theoretical ChemistryNeutral phTriphenylphosphinePolyhedron
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A new isomer of [{Zn(IX)2(NO3)2}·2.5H2O]n [IX = 1,4-bis(imidazole-1-methylene)-benzene] as a rare example of topological isomerism in coordination po…

2006

chemistry.chemical_classificationchemistry.chemical_compoundChemistryOrganic chemistryImidazoleGeneral ChemistryPolymerMethyleneBenzeneMedicinal chemistryMendeleev Communications
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Syntheses and crystal structures of three novel Cu(II) coordination polymers of different dimensionality constructed from Cu(II) carboxylates (carbox…

2004

Abstract We herein report three new coordination polymers generated from Cu(II) carboxylates (mal, 2ac, fum) and conformationally flexible bifunctional IX as building blocks. All the three complexes adopt unique structures in the solid state. The complex [Cu2(mal)2(IX)2(H2O)6]n crystallizes as orthorhombic co-linear rods with space group P2(1) P2(1) P2(1). Each rod is further formed of two tightly intertwined strings. The second polymer [Cu2(ac)4(IX)2]n crystallizes with space group P1 which consists of two sets of intersecting 2D sheets composed of parallel rods which interpenetrate to form a fully interlocked 3D structure. In both these complexes IX coordinates in the anti mode. The third…

ChemistryLigandCoordination polymerCrystal structureInorganic Chemistrychemistry.chemical_compoundMalonatePolymer chemistryMaterials ChemistryImidazoleOrthorhombic crystal systemCarboxylatePhysical and Theoretical ChemistryMonoclinic crystal systemPolyhedron
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CCDC 210592: Experimental Crystal Structure Determination

2005

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen, J.V.Yakhmi|2004|Polyhedron|23|3007|doi:10.1016/j.poly.2004.08.025

catena-((mu~2~-anti-14-bis(Imidazolylmethyl)benzene-NN')-bis(acetato-O)-copper(ii))Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 208696: Experimental Crystal Structure Determination

2006

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen|2006|Polyhedron|25|627|doi:10.1016/j.poly.2005.05.021

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(diisothiocyanato(22'-bipyridyl)copper(ii))Experimental 3D Coordinates
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CCDC 210591: Experimental Crystal Structure Determination

2006

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen, J.V.Yakhmi|2006|Mendeleev Commun.||20|doi:10.1070/MC2006v016n01ABEH001935

Space GroupCrystallographyCrystal SystemCrystal Structure(mu2-terephthalato-OO'')-triaqua-(nitrato-O)-bis(22'-bipyridine-NN')-di-copper(ii) nitrate monohydrateCell ParametersExperimental 3D Coordinates
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CCDC 208697: Experimental Crystal Structure Determination

2006

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen|2006|Polyhedron|25|627|doi:10.1016/j.poly.2005.05.021

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parametersbis((mu2-isothiocyanato)bis(triphenylphosphine)copper(i))Experimental 3D Coordinates
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CCDC 208912: Experimental Crystal Structure Determination

2006

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen|2006|Mendeleev Commun.||88|doi:10.1070/MC2006v016n02ABEH002202

catena-(tetrakis(mu~2~-syn-(14-bis(Imidazolylmethyl)benzene))-tetrakis(mu~2~-anti-(14-bis(imidazolylmethyl)benzene))-tetra-zinc(ii) octanitrate decahydrate)Space GroupCrystallographyCrystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 210590: Experimental Crystal Structure Determination

2005

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen, J.V.Yakhmi|2004|Polyhedron|23|3007|doi:10.1016/j.poly.2004.08.025

Space GroupCrystallographycatena-((mu~2~-14-bis(Imidazolylmethyl)benzene-NN')-aqua-(malonato-OO')-copper(ii) dihydrate)Crystal SystemCrystal StructureCell ParametersExperimental 3D Coordinates
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CCDC 210593: Experimental Crystal Structure Determination

2005

Related Article: S.K.Chawla, M.Arora, K.Nattinen, K.Rissanen, J.V.Yakhmi|2004|Polyhedron|23|3007|doi:10.1016/j.poly.2004.08.025

Space GroupCrystallographyCrystal Systemcatena-(bis((mu~2~-14-bis(Imidazolylmethyl)benzene-NN')-(mu~2~-fumarato-OO')-aqua-copper(ii)))Crystal StructureCell ParametersExperimental 3D Coordinates
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