TY - JOUR
T1 - Rotational Structure of Weakly Bound Molecular Ions
AU - Mikhail Lemeshko & Bretislav Friedrich 
JO - Journal of Atomic and Molecular Sciences
VL - 1
SP - 41
EP - 47
PY - 2010
DA - 2010/01
SN - 1
DO - http://doi.org/10.4208/jams.101009.110209a
UR - https://global-sci.org/intro/article_detail/jams/8063.html
KW - molecular ions, cold collisions, rotational states, near-threshold quantization, WKB, analytic models.
AB - <p style="text-align: justify;">Relying on the quantization rule of Raab and Friedrich [Phys. Rev. A 80
(2009) 052705], we derive simple and accurate formulae for the number of rotational
states supported by a weakly bound vibrational level of a diatomic molecular ion.
We also provide analytic estimates of the rotational constants of any such levels up
to threshold for dissociation and obtain a criterion for determining whether a given
weakly bound vibrational level is rotationless. The results depend solely on the longrange part of the molecular potential.</p>