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Volumn 11, Issue 14, 2009, Pages 3068-3071

Oxygen-doped nanodiamonds: Synthesis and functionalizations

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EID: 67650317693     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol901089h     Document Type: Article
Times cited : (49)

References (32)
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    • AU computations were performed with the GAUSSIAN03 program suite, Frisch, M. J, Trucks, G. W, Schlegel, H. B, Scuseria, G. E, Robb, M. A, Cheeseman, J. R, Montgomery, J. A, Jr, Vreven, T, Kudin, K. N, Burant, J. C, Millam, J. M, Iyengar, S. S, Tomasi, J, Barone, V, Mennucci, B, Cossi, M, Scalmani, G, Rega, N, Petersson, G. A, Nakatsuji, H, Hada, M, Ehara, M, Toyota, K, Fukuda, R, Hasegawa, J, Ishida, M, Nakajima, T, Honda, Y, Kitao, O, Nakai, H, Klene, M, Li, X, Knox, J. E, Hratchian, H. P, Cross, J. B, Bakken, V, Adamo, C, Jaramillo, J, Gomperts, R, Stratmann, R. E, Yazyev, O, Austin, A. J, Cammi, R, Pomelli, C, Ochterski, J. W, Ayala, P. Y, Morokuma, K, Voth, G. A, Salvador, P, Dannenberg, J. J, Zakrzewski, V. G, Dapprich, S, Daniels, A. D, Strain, M. C, Farkas, O, Malick, D. K, Rabuck, A. D, Raghavachari, K, Foresman, J. B, Ortiz, J. V, Cui, Q, Baboul, A. G, Clifford, S, Cioslowski, J, Stefanov, B. B, Liu, G, Liashe
    • AU computations were performed with the GAUSSIAN03 program suite. (Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Montgomery, J. A., Jr.; Vreven, T.; Kudin, K. N.; Burant, J. C.; Millam, J. M.; Iyengar, S. S.; Tomasi, J.; Barone, V.; Mennucci, B.; Cossi, M.; Scalmani, G.; Rega, N.; Petersson, G. A.; Nakatsuji, H.; Hada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; Hasegawa, J.; Ishida, M.; Nakajima, T.; Honda, Y.; Kitao, O.; Nakai, H.; Klene, M.; Li, X.; Knox, J. E.; Hratchian, H. P.; Cross, J. B.; Bakken, V.; Adamo, C.; Jaramillo, J.; Gomperts, R.; Stratmann, R. E.; Yazyev, O.; Austin, A. J.; Cammi, R.; Pomelli, C.; Ochterski, J. W.; Ayala, P. Y.; Morokuma, K.; Voth, G. A.; Salvador, P.; Dannenberg, J. J.; Zakrzewski, V. G.; Dapprich, S.; Daniels, A. D.; Strain, M. C.; Farkas, O.; Malick, D. K.; Rabuck, A. D.; Raghavachari, K.; Foresman, J. B.; Ortiz, J. V.; Cui, Q.; Baboul, A. G.; Clifford, S.; Cioslowski, J.; Stefanov, B. B.; Liu, G.; Liashenko, A.; Piskorz, P.; Komaromi, I.; Martin, R. L.; Fox, D. J.; Keith, T.; Al-Laham, M. A.; Peng, C. Y.; Nanayakkara, A.; Challacombe, M.; Gill, P. M. W.; Johnson, B.; Chen, W.; Wong, M. W.; Gonzalez, C.; Pople, J. A. Gaussian 03, Revision D.02; Gaussian, Inc.: Wallingford CT, 2004.) utilizing analytical first and second energy derivatives. Harmonic vibrational frequencies were computed to ascertain the nature of the stationary points. We used a 6-31+G basis set for DFT and the correlation-consistent cc-pVDZ basis set for MP2 computations. The B3PW91 functional was chosen because it is more trustworthy for large molecules than other popular DFT methods (see, for instance: Schreiner, P. R.; Fokin, A. A.; Pascal, R. A.; de Meijere, A. Org. Lett. 2006, 8, 3635-3638.)
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    • Fokina, N. A.; Tkachenko, B. A.; A., M.; Serafín, M.; Dahl, J. E. P.; Carlson, R. M. K.; Fokin, A. A.; Schreiner, P. R. Eur. J. Org. Chem. 2007, 4738-4745.
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    • General Procedure for the Oxidation of Diamondoids 1-5 with H 2SO4. A mixture of 1 mmol of the hydrocarbon was stirred in 3 mL of 98% H2SO4 for 2 days at 77-80 °C The reaction mixture was poured onto ice and extracted with CHCI3 (4×5 mL, and the combined extracts were washed with water and brine and dried over Na2SO4. The residue after the evaporation was separated by column chromatography on silica gel with pentane/ether (2.5/1, For the yields of the ketones see Table 1 and for the physicochemical characteristics see the Supporting Information. General Procedure for the Preparation of Hydroxymethyl Derivatives 12-17. To a solution of the ketone (20 mmol in 50 mL of dry Et2O) was slowly added an etheral solution of 50 mmol of CH3MgI, and the mixture was stirred under reflux for 4 h, cooled in an ice-water bath, and quenched with 5% H2SO 4. T
    • 4, and solvents were distilled off. Column chromatography of the residue on silica gel with pentane/ether = 9/1 gave the respective oxadiamondoids, whose yields are shown in Table 1 and physicochemical characteristics are described in the Supporting Information.


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