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and CH 4 were separated on molecular sieve 13X column whereas CO 2 , C 2 H 6 and C 2 H 4 were separated on a Haysept column. The crystalline structure of the prepared samples was analyzed with a Rigaku Multiflex diffractometer provided with
occurring on the studied catalysts are: Catalytic activity data for oxidation of C 3 H 8 , C 3 H 6 and C 2 H 6 at 300 °C and of CO at 35 °C are shown in Figs. 2 and 3 . The activity is given in the form of an average rate of a reaction in the
sample (1.7% mass of Al 2 O 3 ), at 500 °C. Legends: filled square C 2 H 5 OH conversion, open triangle CH 3 CHO, filled inverted triangle C 2 H 4 , times H 2 , filled circle C 2 H 6 , open circle CH 4 , selectivities
.5 6.89 17.2 ± 0.6 Proton transfer to Ni II (H −3 A 4 ) 2− shows one reaction for −log[H + ] > 6.6. Two consecutive reactions have been observed for 5.8 < −log[H
some food [ 1 ]. Tartaric acid (C 4 H 6 O 6 ) is found in grapes in the form L (+). Amongst all the organic acids present in grapes it is found in greater quantities than the others [ 2 ]. A survey of literature shows that the thermal
), 1674 (s), carbonyl, 1613 (s), aromatic nucleus, 1528 (s), 1347 (s), nitro group; 1 H-NMR (δ, DMSO-d 6 ) 6.15 (d, J = 2.0 Hz, 1H), 6.18 (overlapping s and d, 2H), 6.87 (t, J = 7.8 Hz, 1H), 8.16 (A portion of an ABX pattern, J AB = 8.5 Hz, 1H), 8
.75(6) 1.81(6) 2.557(5) 175(6) O(6)–H(6O)···O(1W)#1 0.79 1.99 2.692(6) 146
, washed several times with ethanol and air-dried. VO(DMBG) 2 (H 2 O) 0.5 . Analysis found : V, 15.27; C, 28.82; H, 6.54; N, 42.27%; requires for VC 8 H 21 N 10 O 1.5 : V, 15.33; C, 28.92; H, 6.37; N, 42.16%. Reaction yield 80%. VO
o –HBA Reported a Molecular formula C 7 H 6 O 3 C 7 H 6 O 3
.40 x 418.70 647.30 Co-MMT + H 6 g/L 7.17 20.44 13.86 7
