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The bond length of Ni+2

✍ Scribed by R.L. Asher; D. Bellert; T. Buthelezi; P.J. Brucat

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 255 KB
Volume: 224
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(94)00573-7

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✦ Synopsis

The rotationally resolved photodissociation spectrum of mass-selected Ni~ has been observed. Much of the spectrum is congested and perturbed, making the assignment of spectroscopic constants difficult. However, the use of an accidental perturbation in the upper state is shown to simplify the interpretation of the rotational structure greatly. The bond length of the vibrationless ground state of the Ni~" ion as determined from the rotational constant of that state is 2.225 _+ 0.005 A. Rotational band contour analysis indicates the ground state has an angular momentum ( spin plus orbit) along the bond axis, ~7', of 9 / 2 which is incon-4 + sistent with the ab initio theoretical prediction of a ground ~z s state but is consistent with a 4F s state.

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