The cyclic isomer of CO2

1980 ◽  
Vol 73 (9) ◽  
pp. 4517-4520 ◽  
Author(s):  
David Feller ◽  
Jacob Katriel ◽  
Ernest R. Davidson
Keyword(s):  
Cyclic Isomer

Regiodiscriminating Reactivity of Isolable NHC-Coordinated Disilenyl Germylene and Its Cyclic Isomer

2016 ◽  
Vol 138 (42) ◽  
pp. 13996-14005 ◽  
Author(s):  
David Nieder ◽  
Volker Huch ◽  
Cem B. Yildiz ◽  
David Scheschkewitz
Keyword(s):  
Cyclic Isomer

STUDY OF IRON–CARBON MIXED CLUSTERS FeCn (n=2−5): A POSSIBLE LINEAR-TO-CYCLIC TRANSITION FROM FeC3 TO FeC4

1996 ◽  
Vol 03 (01) ◽  
pp. 423-427 ◽  
Author(s):  
LAI-SHENG WANG
Keyword(s):  
Photoelectron Spectroscopy ◽  
Cluster Size ◽  
Structural Transition ◽  
Carbon Clusters ◽  
Cyclic Structure ◽  
Cyclic Transition ◽  
Pure Carbon ◽  
Cyclic Isomer ◽  
Anion Photoelectron Spectroscopy ◽  
Mixed Clusters

Small Fe/C mixed clusters, [Formula: see text], are studied by anion photoelectron spectroscopy at 3.49-eV photon energy. The spectra of [Formula: see text] and [Formula: see text] show well-resolved features and are consistent with linear-to-linear detachment transitions. The [Formula: see text] spectrum is quite broad, suggesting large geometry change from the anion to the neutral. Since [Formula: see text] is known to be linear, our data suggest that neutral FeC4 may have a cyclic structure. The spectrum of [Formula: see text] exhibits both sharp and broad features, consistent with the existence of both a linear and a cyclic isomer. A linear-to-cyclic structural transition is thus suggested to take place for the neutral FeCn clusters from n=3−4; for n<4 they are linear and for n≥4 they can be both linear and cyclic. This is similar to the linear-to-cyclic transition occurring for pure carbon clusters from n=9−10 (Ref. 10) but at a much smaller cluster size due to the presence of the Fe atom.

Tetrasilacyclobutadiylidene: The lowest energy cyclic isomer of singlet Si4H4?

1989 ◽  
Vol 155 (6) ◽  
pp. 563-571 ◽  
Author(s):  
Brian F. Yates ◽  
Henry F. Schaefer
Keyword(s):  
Cyclic Isomer

Formation of a long-lived cyclic isomer of ethylenedione

2019 ◽  
Vol 21 (24) ◽  
pp. 12986-12990 ◽  
Author(s):  
Serge A. Krasnokutski ◽  
Olena Tkachenko ◽  
Cornelia Jäger ◽  
Thomas Henning
Keyword(s):  
Quantum Chemical ◽  
Cyclic Isomer ◽  
Quantum Chemical Computations

A century of unsuccessful attempts to identify the neutral ethylenedione molecule combined with the results of quantum-chemical computations resulted in the conclusion on the instability of this molecule.

The disappearance of the stable slightly-bent isomer of germasilaallenes and the appearance of its cyclic isomer

Polyhedron ◽  
2020 ◽  
Vol 192 ◽  
pp. 114821
Author(s):  
Hong-Wei Xi ◽  
Sultana Bedoura ◽  
Mahasin Alam Sk ◽  
Kok Hwa Lim
Keyword(s):  
Cyclic Isomer

A Cyclic Isomer of 2-Hydroxymelatonin: A Novel Metabolite of Melatonin*

Endocrinology ◽  
1987 ◽  
Vol 120 (6) ◽  
pp. 2453-2459 ◽  
Author(s):  
O. VAKKURI ◽  
J. TERVO ◽  
R. LUTTINEN ◽  
H. RUOTSALAINEN ◽  
E. RAHKAMAA ◽  
...  
Keyword(s):  
Cyclic Isomer
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