Browsing by Subject "Isomerization"
Now showing items 1-7 of 7
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Article
Geometrically strained carbenes: Interdependence among geometry, spin multiplicity and reactivity
(2001)The singlet and triplet states of cyclobutenylidene 1 and benzocyclobutenylidene 2 have been studied computationally (using ab initio and DFT methods) in order to assess the effect of angle strain on the S-T gap of vinyl- ...
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Article
Halogen derivatives of m-phenylene(carbeno)nitrene: A switch in ground-state multiplicity
(2002)m-Phenylene-coupled carbenonitrenes [(3-nitrenophenyl)methylene (2-H), (3-nitrenophenyl)fluoromethylene (2-F), (3-nitrenophenyl)chloromethylene (2-Cl), (3-nitrenophenyl)bromomethylene (2-Br)] have been investigated ...
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Article
Hula-twist photoisomerization of a styrene derivative examined by argon-matrix-infrared-spectroscopic method
(2006)IR spectra of α-cyano- o -fluorocinnamonitrile, its vinyl deuterated analogue and the corresponding photoproducts were recorded under Ar matrix isolation conditions (13K). An analysis of the IR spectra, assisted by ...
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Article
The production and decay kinetics of CIOO in water and freon-11: A time-resolved resonance Raman study
(2001)The production and decay kinetics of ClOO in water and freon-11 were studied using time-resolved resonance Raman (TRRR) spectroscopy. The formation of ClOO following OClO photoexcitation at 390 nm was investigated using ...
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Article
Singlet hydrocarbon carbenes with high barriers toward isomerization: A computational investigation
(2003)A prerequisite for a stable singlet hydrocarbon carbene is the existence of high barriers toward isomerization. Four derivatives of cyclopentylidene (1-4) with rigid and varying carbon cages are examined computationally ...
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Article
Stereochemistry of the [4 + 2] cycloadditions of trans,trans- and cis,trans-2,4-hexadiene to C60
(2002)The [4 + 2] cycloaddition of trans,trans-2,4-hexadiene with C60 proceeds via a concerted mechanism with retention of stereochemistry in the cycloadduct 1a. However, when cis,trans-2,4-hexadiene reacts with C60, isomerization ...
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Doctoral Thesis Open Access
Παράγωγα του Νοραδαμαντενίου στη σύνθεση πολυκυκλικών υδρογονανθράκων
(Πανεπιστήμιο Κύπρου, Σχολή Θετικών και Εφαρμοσμένων Επιστημών / University of Cyprus, Faculty of Pure and Applied Sciences, 2013-12)Το νοραδαμαντένιο (1) ανήκει στην κατηγορία των πυραμιδικών αλκενίων. Είναι πολύ δραστικό και δεν μπορεί να απομονωθεί ως ελεύθερο αλκένιο. Η παρούσα διατριβή εξετάζει τη σύνθεση και τη χημεία του [2+2] διμερούς του ...