Structural Characterization of 1:1 van der Waals Complexes of 9-Cyanoanthracene with Aprotic Solvents by Rotational Coherence Spectroscopy

We report the results of rotational coherence spectroscopy on tolane, tolane–Ar, and tolane–N2. The results on tolane are consistent with a planar geometry for the species. They also provide information about the symmetries of excited vibronic states in the species. The results on the van der Waals complexes provide significant experimental constraints on where the small species bind to tolane. In addition, we report the observation of a rapid excited-state decay process in the complexes and discuss the possible nature of this process.

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Structural characterization of 9-cyanoanthracene–water by rotational coherence spectroscopy

Chemical Physics Letters ◽

10.1016/s0009-2614(00)01446-9 ◽

2001 ◽

Vol 334 (4-6) ◽

pp. 285-292 ◽

Cited By ~ 3

Author(s):

Kazuhiro Egashira ◽

Yasuhiro Ohshima ◽

Okitsugu Kajimoto

Keyword(s):

Structural Characterization ◽

Coherence Spectroscopy

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Structural Characterization of Aromatic−Aromatic Complexes by Rotational Coherence Spectroscopy

The Journal of Physical Chemistry A ◽

10.1021/jp9808678 ◽

1998 ◽

Vol 102 (24) ◽

pp. 4481-4494 ◽

Cited By ~ 5

Author(s):

Paul W. Joireman ◽

Shane M. Ohline ◽

Peter M. Felker

Keyword(s):

Structural Characterization ◽

Coherence Spectroscopy ◽

Aromatic Complexes

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New ultrastructural findings about Borrelia burgdorferi by cryofixation, negative staining, thin sectioning and scanning techniques

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100160467 ◽

1990 ◽

Vol 48 (3) ◽

pp. 582-583

Author(s):

S. F. Hayes ◽

M. D. Corwin ◽

T. G. Schwan ◽

D. W. Dorward ◽

W. Burgdorfer

Keyword(s):

Lyme Disease ◽

Borrelia Burgdorferi ◽

Structural Characterization ◽

Negative Staining ◽

Low Speed ◽

Thin Sectioning ◽

Ultrastructural Findings

Characterization of Borrelia burgdorferi strains by means of negative staining EM has become an integral part of many studies related to the biology of the Lyme disease organism. However, relying solely upon negative staining to compare new isolates with prototype B31 or other borreliae is often unsatisfactory. To obtain more satisfactory results, we have relied upon a correlative approach encompassing a variety EM techniques, i.e., scanning for topographical features and cryotomy, negative staining and thin sectioning to provide a more complete structural characterization of B. burgdorferi.For characterization, isolates of B. burgdorferi were cultured in BSK II media from which they were removed by low speed centrifugation. The sedimented borrelia were carefully resuspended in stabilizing buffer so as to preserve their features for scanning and negative staining. Alternatively, others were prepared for conventional thin sectioning and for cryotomy using modified procedures. For thin sectioning, the fixative described by Ito, et al.

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