The 271-nm electronic spectrum of indane (benzocyclopentene)

Two-color resonantly enhanced multiphoton ionization and zero-kinetic-energy photoelectron spectroscopy of jet-cooled indan

“…[1][2][3][4][5][6][7][8] The structure of indan itself is shown in Fig. [1][2][3][4][5][6][7][8] The structure of indan itself is shown in Fig.…”

“…[1][2][3][4]6,7 The geometry of both states was first studied by Hollas and Khalilipour based on absorption spectroscopy. [1][2][3][4]6,7 The geometry of both states was first studied by Hollas and Khalilipour based on absorption spectroscopy.…”

Laser-induced fluorescence and single vibronic level emission spectroscopy of chiral (R)-1-aminoindan and some of its clusters in a supersonic jet

“…Spectroscopic determination of the structures and potential energy surfaces for a number of five-member ring compounds has been investigated by different groups. [7][8][9][10] Hollas et al have investigated the puckering vibration of pseudo five-member rings and constructed a 1-D symmetric double well potential for indan and related molecules. [11][12][13] They considered a quadratic double well potential of the form V(x) ¼ Ax 2 þ Bx 4 for the puckering vibration in indan and reported barriers of 1979 cm À1 and 1820 cm À1 for the S 0 and S 1 states, respectively.…”

Dissymmetry effects on the laser spectroscopy of supersonically expanded rare gas/chiral arene heteroclusters

“…8,[23][24][25] Both kinetic and thermodynamic factors may concur in determining the isomeric population under such conditions. 29 Indeed, the available evidence 13,[17][18][19][20][21][22][23] points to the most stable [1,1] isomer as predominating at the supersonic beam temperature. In the [1,1] structure, the two Rg atoms might establish very weak reciprocal interactions, if any, mediated by the aromatic moiety (a three body interaction).…”

“…Incidentally, the absence in the [FE R Á Ar] absorption spectrum of a band red-shifted around À24 cm À1 from the 0 0 0 electronic S 1 ' S 0 transition of bare FE R further confirms the view that the less stable [0,1] [FE R Á Ar] structure is not formed in the supersonic beam. 29 Along the same line of reasoning, the two Ar atoms in [1,1] [FE R Á (Ar) 2 ] (Fig. 4c) are polarized along different directions because of the influence of the CF 3 group on the up face and of the combined effects of the H and OH moieties on the down one of the aromatic chromophore.…”