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72
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31144439281
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B.Sc. Thesis, Boston College
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(b) Best, M. D. B.Sc. Thesis, Boston College, 1997.
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(1997)
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Best, M.D.1
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74
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31144451239
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note
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The charge distribution for these dianions was calculated using another equation (ref 11) that takes into account the anisotropy effect, and it was found that most of the charge resides on carbon atom C3.
-
-
-
-
75
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31144444934
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note
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Solvent cleavage, deuteration or protonation cannot explain the observed phenomena and therefore they are not taken into consideration.
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-
-
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76
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31144462789
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note
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13C NMR spectra would be observed). Moreover, a fast bowl-to-bowl inversion (on the NMR time-scale) is not reasonable for such a system, and therefore, the high-symmetry cannot be due to an averaging of the signals.
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-
-
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77
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31144453313
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note
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2-hybridized carbon stems from the concentration of high charge on it.
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78
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0001259238
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For example: (a) Schuber, U.; Neugebauer, W.; Schleyer, P. v. R. J. Chem. Soc., Chem. Commun. 1982, 1184-1185.
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(1982)
J. Chem. Soc., Chem. Commun.
, pp. 1184-1185
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Schuber, U.1
Neugebauer, W.2
Schleyer, P.V.R.3
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79
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84985059193
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(b) Seebach, D.; Hässig, R.; Gabriel, J. Helv. Chim. Acta 1983, 66, 308-337.
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(1983)
Helv. Chim. Acta
, vol.66
, pp. 308-337
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Seebach, D.1
Hässig, R.2
Gabriel, J.3
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80
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84943917347
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(c) Benken, R.; Werner, A.; Günther, H. Angew. Chem., Int. Ed. Engl. 1988, 27, 1182-1183.
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(1988)
Angew. Chem., Int. Ed. Engl.
, vol.27
, pp. 1182-1183
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Benken, R.1
Werner, A.2
Günther, H.3
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81
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0010388032
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(d) Bauer, W.; O'Doherty, G. A.; Schleyer, P. v. R.; Paquette, L. A. J. Am. Chem. Soc. 1991, 113, 7093-7100.
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(1991)
J. Am. Chem. Soc.
, vol.113
, pp. 7093-7100
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Bauer, W.1
O'Doherty, G.A.2
Schleyer, P.V.R.3
Paquette, L.A.4
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82
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0000278938
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(e) Sekiguchi, A.; Ichinohe, M.; Nakanishi, T.; Kabuto C.; Sakurai, H. Bull. Chem. Soc. Jpn. 1995, 68, 3215-3220.
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(1995)
Bull. Chem. Soc. Jpn.
, vol.68
, pp. 3215-3220
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-
Sekiguchi, A.1
Ichinohe, M.2
Nakanishi, T.3
Kabuto, C.4
Sakurai, H.5
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83
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0030602199
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For an example of a lithium cation binding two carbanionic centers see, Böhler, B.; Hüls, D.; Günther, H. Tetrahedron Lett. 1996, 37, 8719-8722.
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(1996)
Tetrahedron Lett.
, vol.37
, pp. 8719-8722
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Böhler, B.1
Hüls, D.2
Günther, H.3
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84
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0033258813
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and references therein
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13C,6Li coupling is highly dependent on temperature and degree of aggregation. For dimers (not PAHs) values of 2-3 Hz were observed, whereas monomers can give couplings of up to 17 Hz. Moreover, these couplings cannot be observed above ca. 200 K. See: Günther, H. J. Braz. Chem. Soc. 1999, 10, 241-262 and references therein.
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(1999)
J. Braz. Chem. Soc.
, vol.10
, pp. 241-262
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Günther, H.1
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85
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13244253788
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and references therein
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Cohen, Y.; Avram, L.; Frish, L.; Angew. Chem., Int. Ed. 2005, 44, 520-554 and references therein.
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(2005)
Angew. Chem., Int. Ed.
, vol.44
, pp. 520-554
-
-
Cohen, Y.1
Avram, L.2
Frish, L.3
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86
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31144433520
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note
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Proton H14 is found in the bay area; therefore, its chemical shift was not taken into consideration when calculating the average proton shift.
-
-
-
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87
-
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31144476927
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note
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+ is strongly paratropic and annulenic in behavior.
-
-
-
-
88
-
-
31144450425
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-
note
-
2- appear with lithium as counterion, is reversed from that of potassium.
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-
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89
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0029835973
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(a) Scott, L. T.; Bratcher, M. S.; Hagen, S. J. Am. Chem. Soc. 1996, 118, 8743-8744.
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(1996)
J. Am. Chem. Soc.
, vol.118
, pp. 8743-8744
-
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Scott, L.T.1
Bratcher, M.S.2
Hagen, S.3
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