Browsing Prof. C.N.R. Rao's Publications by Title

Now showing items 1-20 of 892

1, 2-, 1, 3- and 1, 4-Cyclohexanedicarboxylates of Cd and Mn with chain and layered structures

Thirumurugan, A; Avinash, M B; Rao, C N R (Royal Society Chemistry, 2006)

A systematic study has been carried out on the three isomeric cyclohexanedicarboxylates (CHDCs) formed by cadmium and manganese with the three isomeric dicarboxylic acids, in the presence or absence of amines. The CHDCs ...
1,2-, 1,3- and 1,4-Benzenedicarboxylates of Cd and Zn of different dimensionalities: Process of formation of the three-dimensional structure

Thirumurugan, A; Rao, C N R (Royal Society Chemistry, 2005)

A systematic study of the benzenedicarboxylates (BDCs) formed by cadmium and zinc with the three isomeric dicarboxylic acids in the presence or absence of amines has been carried out. Several BDCs have been prepared under ...
123, 247, and 124 cuprate superconductors: Investigations of thermodynamic stabilities, defect structures, and intergrowths

Rao, C N R; Subbanna, G N; Nagarajan, R; Ganguli, A K; Ganapathi, L; Vijayaraghavan, R; Bhat, S V; Raju, A R (Academic Press Inc JNL-Comp Subscriptions, 1990-09)

Careful investigations employing nonresonant microwave or rf absorption, Cu2+ EPR spectra, X-ray diffraction, and electron microscopy show that orthorhombic YBa2Cu3O7−δ is thermodynamically stable and monophasic when δ is ...
29Si NMR chemical shifts in silicates

Prabakar, S; Rao, K J; Rao, C N R (Elsevier Science BV, 1991-08-30)

29Si chemical shifts in a wide variety of silicates in crystalline, glassy and gel states have been related to a parameter, P, which takes into account the electronegativity and the structural description of the silicate ...
A 57Fe Mossbauer study of charge ordering and phase separation in the rare-earth manganates, Nd0.5Ca0.5MnO3 and Nd0.5Sr0.5MnO3

Vanitha, P V; Nagarajan, R; Rao, C N R (Academic Press Inc Elsevier Science, 2003-08)

Mössbauer studies of 2% 57Fe-doped Nd0.5Ca0.5MnO3 and Nd0.5Sr0.5MnO3 have been carried out over the 4.2–300 K range after ensuring that such doping does not change their basic properties. The charge-ordering transition in ...
Absence of ferromagnetism in electron-doped rare-earth manganates, Ln(1-x)A(x)MnO(3) (x > 0.5)

Vanitha, P V; Sarathy, K Vijaya; Cheetham, A K; Rao, C N R (Pergamon-Elsevier Science Ltd, 2000)

In order to explore whether the ferromagnetic metallic state ever occurs in the electron-doped rare-earth manganates, a comparative study of the effects of magnetic fields and of cation substitution in the Mn-site were ...
Absence of ferromagnetism in Mn- and Co-doped ZnO

Rao, C N R; Deepak, F L (Royal Society Chemistry, 2005)

Following the theoretical predictions of ferromagnetism in Mn- and Co-doped ZnO, several workers reported ferromagnetism in thin films as well as in bulk samples of these materials. While some observe room-temperature ...
Addition Of Amines And Halogens To Fullerenes C60 and C70

Seshadri, Ram; Govindaraj, A; Nagarajan, R; Pradeep, T; Rao, C N R (Pergamon-Elsevier Science Ltd, 1992-03-07)

In solution phase, aliphatic amines add on to fullerenes; vapourization of graphite in presence of methylamine gives nitrogeneous C60 derivatives. Reactions of C60 with SbCl5 and liquid Br2 yield halogen adducts.
Adsorption Of Carbonyl Compounds On Clean And Modified Cu(110) Surfaces : A Combined eels-ups Study

Prabhakaran, K; Rao, C N R (Elsevier Science BV, 1990-05)

HCHO, CH3CHO and (CH3)2CO are shown to adsorb molecularly on a clean Cu(110) surface at 80 K and transform to different surface species on increasing the temperature. On a Cu(110) surface modified with aluminum, adsorption ...
Adsorption of nitrogen on clean and modified single-crystal Ni surfaces

Rao, G R; Rao, C N R (Elsevier Science BV, 1990-08)

N2 chemisorbs on (100), (110) and (111) single-crystal faces at 80 K without any dissociation. A molecular precursor species at the threshold of dissociation is formed at 80 K on a Ni(110) surface covered with atomic carbon ...
Adsorption of Oxygen On (100), (110) and (111) Surfaces Of Ag, Cu and Ni : An Electron Spectroscopic Study

Rajumon, M K; Prabhakaran, K; Rao, C N R (Elsevier Science BV, 1990)

Adsorption of oxygen has been studied on (111), (110) and (100) surfaces of Ag, Cu, and Ni employing XPS and UPS. Besides atomic species with an O(1s) binding energy of ~ 530 eV, molecular adsorption is found on all the ...
Advances in solid state chemistry

Rao, C.N.R (Indian National Science Academy, 1985-12)
Aliphatic dicarboxylates with three-dimensional metal-organic frameworks possessing hydrophobic channels

Vaidhyanathan, Ramanathan; Natarajan, Srinivasan; Rao, C N R (Royal Society Chemistry, 2003)

Two three-dimensional open-framework metal dicarboxylates possessing channels with a hydrophobic environment have been synthesized. One is a malonate of the formula, [Cd(O2C-CH2-CO2)(H2O)].H2O, I, and the other a glutarate ...
AlN nanocrystals by new chemical routes

Sardar, Kripasindhu; Rao, C N R (Elsevier Science BV, 2005-02)

Hexagonal aluminum nitride nanocrystals have been prepared by the reaction of hexamethyldisilazane with Al cupferronate or AlCl3 under solvothermal conditions. The nanocrystals have been characterized by X-ray diffraction, ...
Amine Phosphates as Intermediates in the Formation of Open-Framework Structures

Neeraj, S; Natarajan, Srinivasan; Rao, C N R (WILEY-VCH Verlag GmbH, 1999)

Chain, ladder, layer, and three-dimensional metal phosphates were obtained by the reaction of amine phosphates with metal ions under mild hydrothermal conditions. The role of amine phosphates as intermediates in hydrothermal ...
Amine-Templated Cobalt(II) Coordination Polymer Exhibiting Novel Magnetic Properties: Effect of Dehydration

Nagaraja, C M; Kumar, Nitesh; Maji, Tapas Kumar; Rao, C N R (Wiley-Blackwell, 2011-05)

An amine-templated 2D coordination polymer of Co(II) with the formula {[EDAH(2)][Co(2)F(2)(SO(4))(2)(H(2)O)(2)]}(n) (1) (EDA = ethylenediamine), has been synthesised and structurally characterised. It consists of a 1D chain ...
Amine-Templated Linear Vanadium Sulfates with Different Chain Structures

Paul, G; Choudhury, Amitava; Nagarajan, R; Rao, C N R (American Chemical Society, 2003-03-24)

Amine-templated vanadium sulfates of the formula [HN(CH2)(6)NH][((VO)-O-IV)(2)(OH)(2)(SO4)(2)].H2O, I, [H3N(CH2)(2)NH3][V-III-(OH)(SO(4)2)].H2O, I, and [H2N(CH2)(4)NH2][((VO)-O-IV)(H2O)(SO4)(2)], III, have been prepared ...
Amine-templated metal squarates

Dan, Meenakshi; Sivashankar, K; Cheetham, A K; Rao, C N R (Academic Press Inc Elsevier Science, 2003-08)

Two layered amine-templated cobalt squarates, [C6N2H14](2)[Co-2(C4O4)(3)(H2O)(4)], I, and [C3N2H5](2)[CO2(C4O4)(3)(H2O)(4)], II, have been prepared under hydrothermal conditions. Both I and II contain chains formed by ...
Amine-Templated One-Dimensional Metal Sulfates Includinga Mixed- Valent Fe Compound with a Half-Kagome Structure

Behera, J N; Rao, C N R (Wiley-VCH Verlag GmbH, 2006)

Organically templated metal sulfates are relatively new. Six aminetemplated transition-metal sulfates with different types of chain structures, including a novel iron sulfate with a chain structure corresponding to one ...
Ammonia sensors based on metal oxide nanostructures

Rout, Chandra Sekhar; Hegde, Manu; Govindaraj, A; Rao, C N R (IOP Publishing Ltd, 2007-05-23)

Ammonia sensing characteristics of nanoparticles as well as nanorods of ZnO, In2O3 and SnO2 have been investigated over a wide range of concentrations ( 1-800 ppm) and temperatures ( 100-300 degrees C). The best values of ...

Now showing items 1-20 of 892

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