NOPR Collection:

Catalytic properties of BaPb_1-xBi_xO₃ perovskite oxide for partial oxidation of benzyl alcohol

2016-07-20T05:33:02Z

Title: Catalytic properties of BaPb_1-xBi_xO₃ perovskite oxide for partial oxidation of benzyl alcohol Authors: Sumathi, R; Johnson, K; Viswanathan, B; Varadarajan, T K Abstract: Partial oxidation of benzyl alcohol is carried out on BPb_1-xBi_xO₃, (x = 0-1) type perovskite oxides. Benzaldehyde and toluene are obtained as the major products when the reaction is carried out in the absence of oxygen. When the reaction is carried out in the presence of gas phase oxygen small amounts of benzoic acid and benzyl benzoate are also obtained. Catalysts have been characterised by XRD after the reaction. Catalyst undergoes partial decomposition when the reaction is carried out in the absence of gas phase oxygen. Extent of reduction of catalyst depends on the partial pressure of oxygen. XPS studies reveal that bismuth rich compounds are more basic. High activity and selectivity of bismuth rich systems have been attributed to their high basicity. Page(s): 40-48

Proofs for Pearson's HSAB principle

2013-01-06T16:33:08Z

Title: Proofs for Pearson's HSAB principle Authors: Patra, Goutam Kumar; Hati, Sanchita; Datta, Dipankar Abstract: Two previously published rules are used in an attempt to provide a qualitative proof for Pearson's HSAB principle and another attempt is made to prove the principle quantitatively by using a heterolytic dissociative version of Pauling's bond energy equation. Page(s): 1-3

Determination of the equilibrium constant for complex formation in a binary mixture of chloroform and triethylamine from viscosity data on the basis of the ideal associated solution model

2013-01-08T16:33:23Z

Title: Determination of the equilibrium constant for complex formation in a binary mixture of chloroform and triethylamine from viscosity data on the basis of the ideal associated solution model Authors: Das, Bijan Abstract: In a binary mixture of chloroform and triethylamine there exists an equilibrium between chloroform, tri ethylamine and an 1:1 chloroform- triethylamine complex. The equilibrium constant for the formation of this complex has been estimated by analysing the viscosity data of the mixture on the basis of the ideal associated solution model. An excellent agreement is observed between the equilibrium constant obtained from the present analysis and the literature value obtained from vapour pressure measurements. Page(s): 95-97

Thermodynamics of molecular interactions in binary mixtures containing nitromethane: Molar excess volumes and molar excess enthalpies

2013-01-01T16:35:12Z

Title: Thermodynamics of molecular interactions in binary mixtures containing nitromethane: Molar excess volumes and molar excess enthalpies Authors: Sharma, V K; Singh, Jaibir Abstract: Molar excess volumes, V^E and molar excess enthalpies, H^E, for nitromethane(i) isopropanol or +n-butanol(j) binary mixtures have been measured by dilatometer and microflow calorimeter as a function of composition at 308.15K. The V^E data have been analysed in terms of graph-theoretical approach to extract information about the state of isopropanol or n-butanol in pure and mixture states. It has been observed that isopropanol and n-butanol exist as dimer in the pure state and the (i+j) mixtures are characterised by interactions between oxygen and nitrogen atoms of nitromethane (i) with hydrogen and oxygen atoms of alcoholic group of alcohols to form 1:1 molecular complex. The energetics of the mixtures have also been discussed. Page(s): 65-69

NOPR Collection:

Catalytic properties of BaPb1-xBixO3 perovskite oxide for partial oxidation of benzyl alcohol

Proofs for Pearson's HSAB principle

Determination of the equilibrium constant for complex formation in a binary mixture of chloroform and triethylamine from viscosity data on the basis of the ideal associated solution model

Thermodynamics of molecular interactions in binary mixtures containing nitromethane: Molar excess volumes and molar excess enthalpies

Catalytic properties of BaPb_1-xBi_xO₃ perovskite oxide for partial oxidation of benzyl alcohol