Comment on "Single-Crystal X-ray Structure of 1,3-Dimethylcyclobutadiene by Confinement in a Crystalline Matrix"

被引：23

作者：

Alabugin, Igor V. ^{[1
]}

Gold, Brian ^{[1
]}

Shatruk, Michael ^{[1
]}

Kovnir, Kirill ^{[1
]}

机构：

[1] Florida State Univ, Dept Chem & Biochem, Tallahassee, FL 32306 USA

来源：

SCIENCE | 2010年 / 330卷 / 6007期

关键词：

CYCLOBUTADIENE; STATES;

D O I：

10.1126/science.1196188

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Legrand et al. (Reports, 16 July 2010, p. 299) reported the experimental observation of square-planar and rectangular-bent geometries of 1,3-dimethylcyclobutadiene (Me(2)CBD) confined within a crystalline matrix. However, we found no evidence for the Me(2)CBD formation. We argue that the experimental x-ray density data are better attributed to the bicyclic beta-lactone intermediate where carbon dioxide is covalently bound to cyclobutadiene.

引用

页数：2

共 18 条

[1]

ARNOLD B, 1990, KINETICS SPECTROSCOP, pCH1

[2] A MULTIREFERENCE COUPLED-CLUSTER STUDY OF THE GROUND-STATE AND LOWEST EXCITED-STATES OF CYCLOBUTADIENE [J].

BALKOVA, A ;

BARTLETT, RJ .

JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (10) :8972-8987

[3] CYCLOBUTADIENE [J].

BALLY, T ;

MASAMUNE, S .

TETRAHEDRON, 1980, 36 (03) :343-370

[4] POTENTIAL SURFACES FOR LOWEST SINGLET AND TRIPLET-STATES OF CYCLOBUTADIENE [J].

BORDEN, WT ;

DAVIDSON, ER ;

HART, P .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1978, 100 (02) :388-392

[5] PHOTOCHEMICAL TRANSFORMATIONS .48. CYCLOBUTADIENE [J].

CHAPMAN, OL ;

MCINTOSH, CL ;

PACANSKY, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1973, 95 (02) :614-617

[6] INTERNAL PHOTOADDITION REACTIONS OF 2-PYRONE + N-METHYL-2-PYRIDONE - NEW SYNTHETIC APPROACH TO CYCLOBUTADIENE [J].

COREY, EJ ;

STREITH, J .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1964, 86 (05) :950-&

[7]

CRAM DJ, 1991, ANGEW CHEM INT EDIT, V30, P1024, DOI 10.1002/anie.199110241

[8] Single-Crystal X-ray Structure of 1,3-Dimethylcyclobutadiene by Confinement in a Crystalline Matrix [J].

Legrand, Yves-Marie ;

van der Lee, Arie ;

Barboiu, Mihail .

SCIENCE, 2010, 329 (5989) :299-302

[9] MATRIX PREPARATION OF CYCLOBUTADIENE [J].

LIN, CY ;

KRANTZ, A .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1972, (19) :1111-&

[10] CYCLOBUTADIENE PROBLEM [J].

MAIER, G .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION IN ENGLISH, 1974, 13 (07) :425-438

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