-
13
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-
85034316789
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-
The electronegativity proposed by Allred–Rochow was employed to discuss the structure of the adducts. See
-
The electronegativity proposed by Allred–Rochow was employed to discuss the structure of the adducts. See.
-
-
-
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15
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84987039913
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W. Nakanishi, Y. Yamamoto, S. Hayashi, H. Tukada, H. Iwamura J. Phys. Org. Chem. 1990 3 369.
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Nakanishi, W.1
Yamamoto, Y.2
Hayashi, S.3
Tukada, H.4
Iwamura, H.5
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16
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84986550210
-
Quantitative Models of Steric Effects
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R. W. Taft Interscience, New York
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S. H. Unger and C. Hansch. Quantitative Models of Steric Effects, in Progress in Physical Organic Chemistry, ed. R. W. Taft Interscience, New York 1976, vol. 12.
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(1976)
Progress in Physical Organic Chemistry
, vol.12
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Unger, S.H.1
Hansch, C.2
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17
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0001715336
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For preliminary communications, see
-
For preliminary communications, see W. Nakanishi, S. Hayashi, Y. Nakamura and H. Iwamura Chem. Lett., 1992, 735.
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(1992)
Chem. Lett
, pp. 735
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Nakanishi, W.1
Hayashi, S.2
Nakamura, Y.3
Iwamura, H.4
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18
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0003282684
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W. Nakanishi, K. Sakamoto, K. Isaka, S. Hayashi Phosphorus, Sulfur Silicon Relat. Elem. 1992 67 79.
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(1992)
Phosphorus, Sulfur Silicon Relat. Elem
, vol.67
, pp. 79
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Nakanishi, W.1
Sakamoto, K.2
Isaka, K.3
Hayashi, S.4
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19
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85034361572
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-
The criteria are summarized as follows. (1) Large downfield shifts of ipso- and para-carbons of aryl groups are observed in TB formation relative to those of the parent selenides: the former depends on the electronegativity of the halogens whereas the latter is almost independent of them. (2) The signal of para-carbon shifts downfield whereas the ipso-carbon shifts upfield in the formation of MC: the shift values are often small but the values must be moderate if the equilibrium between the MC and its components are taken into account. (3) Very large downfield shifts are observed for 77Se NMR signals in TB formation, whereas the values were small in the formation of MC. (4) Large downfield shifts of ortho-protons in TB formation are also useful
-
The criteria are summarized as follows. (1) Large downfield shifts of ipso- and para-carbons of aryl groups are observed in TB formation relative to those of the parent selenides: the former depends on the electronegativity of the halogens whereas the latter is almost independent of them. (2) The signal of para-carbon shifts downfield whereas the ipso-carbon shifts upfield in the formation of MC: the shift values are often small but the values must be moderate if the equilibrium between the MC and its components are taken into account. (3) Very large downfield shifts are observed for 77Se NMR signals in TB formation, whereas the values were small in the formation of MC. (4) Large downfield shifts of ortho-protons in TB formation are also useful.
-
-
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22
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84986617286
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The Nature and Analysis of Substituent Electronic Effects
-
R. W. Taft Interscience, New York see also other chapters therein
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R. D. Topsom The Nature and Analysis of Substituent Electronic Effects, in Progress in Physical Organic Chemistry, ed. R. W. Taft Interscience, New York 1976, vol. 12, see also other chapters therein.
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(1976)
Progress in Physical Organic Chemistry
, vol.12
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Topsom, R.D.1
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23
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85034367640
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The electrochemical oxidation of (4-YC6H4)2Z (Z = Se, Te) and 4-YC6H4ZMe (Z = S, Se, Te) were studied in connection with Hammett’s postulate. See
-
The electrochemical oxidation of (4-YC6H4)2Z (Z = Se, Te) and 4-YC6H4ZMe (Z = S, Se, Te) were studied in connection with Hammett’s postulate. See.
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24
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0004209464
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GAUSSIAN 98 (Revision A.11), Pittsburgh, PA
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Gaussian 94, Revision D.4, M. J. Frisch, G. W. Trucks, H. B. Schlegel, P. M. W. Gill, B. G. Johnson, M. A. Robb, J. R. Cheeseman, T. Keith, G. A. Petersson, J. A. Montgomery, K. Raghavachari, M. A. Al-Laham, V. G. Zakrzewski, J. V. Ortiz, J. B. Foresman, J. Cioslowski, B. B. Stefanov, A. Nanayakkara, M. Challacombe, C. Y. Peng, P. Y. Ayala, W. Chen, M. W. Wong, J. L. Andres, E. S. Replogle, R. Gomperts, R. L. Martin, D. J. Fox, J. S. Binkley, D. J. Defrees J. Baker, J. P. Stewart M. Head-Gordon C. Gonzalez and J. A. Pople Gaussian, Inc., Pittsburgh, PA 1995.
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Cheeseman, J.R.7
Keith, T.8
Petersson, G.A.9
Montgomery, J.A.10
Raghavachari, K.11
Al-Laham, M.A.12
Zakrzewski, V.G.13
Ortiz, J.V.14
Foresman, J.B.15
Cioslowski, J.16
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Nanayakkara, A.18
Challacombe, M.19
Peng, C.Y.20
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GAUSSIAN 98 (Revision A.11), Pittsburgh, PA
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Gaussian 98, Revision A.9, M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria, M. A. Robb, J. R. Cheeseman, V. G. Zakrzewski, J. A. Montgomery, Jr., R. E. Stratmann, J. C. Burant, S. Dapprich, J. M. Millam, A. D. Daniels, K. N. Kudin, M. C. Strain, O. Farkas, J. Tomasi, V. Barone, M. Cossi, R. Cammi, B. Mennucci, C. Pomelli, C. Adamo, S. Clifford, J. Ochterski, G. A. Petersson, P. Y. Ayala, Q. Cui, K. Morokuma, D. K. Malick, A. D. Rabuck, K. Raghavachari, J. B. Foresman, J. Cioslowski, J. V. Ortiz, A. G. Baboul, B. B. Stefanov, G. Liu, A. Liashenko, P. Piskorz, I. Komaromi, R. Gomperts, R. L. Martin, D. J. Fox, T. Keith, M. A. Al-Laham, C. Y. Peng, A. Nanayakkara, M. Challacombe, P. M. W. Gill, B. Johnson, W. Chen, M. W. Wong J. L. Andres, C. Gonzalez M. Head-Gordon E. S. Replogle and J. A. Pople Gaussian, Inc., Pittsburgh PA 1998.
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Trucks, G.W.2
Schlegel, H.B.3
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Cheeseman, J.R.6
Zakrzewski, V.G.7
Montgomery, J.A.8
Stratmann, R.E.9
Burant, J.C.10
Dapprich, S.11
Millam, J.M.12
Daniels, A.D.13
Kudin, K.N.14
Strain, M.C.15
Farkas, O.16
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Clifford, S.24
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Petersson, G.A.26
Ayala, P.Y.27
Cui, Q.28
Morokuma, K.29
Salvador, P.30
Dannenberg, J.J.31
Malick, D.K.32
Rabuck, A.D.33
Raghavachari, K.34
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Cioslowski, J.36
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Baboul, A.G.38
Stefanov, B.B.39
Liu, G.40
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Challacombe, M.51
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Masuda, S.2
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0000264447
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W. Nakanishi, S. Hayashi, Y. Kusuyama, T. Negoro, S. Masuda, H. Mutoh J. Org. Chem. 1998 54 540.
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Mutoh, H.6
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33
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85034315279
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The Eox values measured in this work are well correlated with those reported in ref. 8 (Eox′). Eox = 1.096 × Eox′ + 0.349 (r = 0.981)
-
The Eox values measured in this work are well correlated with those reported in ref. 8 (Eox′). Eox= 1.096 × Eox′ + 0.349 (r= 0.981).
-
-
-
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34
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85034374530
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This would be better explained if the MC adducts are widely optimized. However, this could not be achieved since the calculations with MC adducts of 4 10 13 were terminated due to convergence failure in the SCF
-
This would be better explained if the MC adducts are widely optimized. However, this could not be achieved since the calculations with MC adducts of 4, 10 and 13 were terminated due to convergence failure in the SCF.
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38
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0000371509
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G. A. Kalabin, D. F. Kushnarev, L. M. Kataeva, L. V. Kashurnikova, R. I. Vinokurova Zh. Org. Khim. 1978 14 2478.
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Kalabin, G.A.1
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Kataeva, L.M.3
Kashurnikova, L.V.4
Vinokurova, R.I.5
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