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dc.contributor.authorVaidhyanathan, R-
dc.contributor.authorNatarajan, Srinivasan-
dc.contributor.authorRao, C N R-
dc.date.accessioned2012-02-17T11:35:13Z-
dc.date.available2012-02-17T11:35:13Z-
dc.date.issued2002-08-26-
dc.identifier0020-1669en_US
dc.identifier.citationInorganic Chemistry 41(17), 4496-4501 (2002)en_US
dc.identifier.urihttps://libjncir.jncasr.ac.in/xmlui/10572/462-
dc.descriptionRestricted Accessen_US
dc.description.abstractTwo open-framework neodymium oxalates, [NH3CH2CH(NH3)CH3][Nd(C2O4)(2)(HCOO)].H2O (I) and [OC(CH3)NCH2CH(CH3)NH3][Nd(C2O4)(2)].H2O (11), have been synthesized hydrothermally in the presence of 1,2-diaminopropane (1,2-DAP) and formic (1) and acetic (11) acids. The Nd atoms in both these oxalates have 9-fold coordination with respect to the oxygens, with the Nd atom in a distorted monocapped square antiprism coordination in I and in an idealized D-3h triply capped trigonal prism coordination in H. The three-dimensional framework structures of I and II are built up by in-plane linkages between the Nd and the oxalate moieties, forming layers with 12-membered honeycomb-like apertures, pillared by an out-of-plane oxalate unit. The 12-memberd channel in I contains a dangling formate group in addition to the disordered amine molecule, while in II, the channel has N-(2-aminopropyl acetimide) molecules formed by the in situ reaction of 1,2-DAP and acetic acid. The accessibility of the formate and N-(2-aminopropyl acetimide) functional groups in I and II, respectively, uniformly distributed within the channels enables chemical manipulation. Crystal data: 1, monoclinic, space group P2(1)/c (no. 14), M = 459.5, a = 9.0279(4) Angstrom, b = 18.1362(8) Angstrom, c = 8.5631(4) Angstrom, beta = 102.735(10)degrees, V = 1367.56(11) Angstrom(3), Z = 4, R-1 = 0.0229, wR(2) = 0.0599 [1782 observed reflections with I > 2sigma(I)]; II, triclinic, space group P (1) over bar (no. 2), M = 454.5, a 8.6222(9) Angstrom, b = 9.5683(10) Angstrom, c = 9.5712(10) Angstrom, alpha = 109.388(2)degrees, beta = 98.508(10)degrees, gamma = 102.361(12)degrees, V = 706.73(13) Angstrom(3), Z = 2, R-1 = 0.0446, wR(2) = 0.115 [1730 observed reflections with I > 2sigma(I)].en_US
dc.description.urihttp://dx.doi.org/10.1021/ic020197ren_US
dc.language.isoenen_US
dc.publisherAmerican Chemical Societyen_US
dc.rights© 2002 American Chemical Societyen_US
dc.subjectCrystal-Structureen_US
dc.subjectMil-Nen_US
dc.subjectCobalt(Ii) Carboxylateen_US
dc.subjectZincen_US
dc.subjectPhosphonateen_US
dc.subjectCatalystsen_US
dc.subjectNetworksen_US
dc.subjectSeriesen_US
dc.titleThree-Dimensional Open-Framework Neodymium Oxalates with Organic Functional Groups Protruding in 12-Member Channelsen_US
dc.typeArticleen_US
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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