Hyperfine interactions in the ground states of titanium monoxide and mononitride

Journal Article · Wed Sep 15 04:00:00 EDT 1993 · Journal of Chemical Physics; (United States)

DOI:https://doi.org/10.1063/1.466082· OSTI ID:6023551

Fletcher, D A; Scurlock, C T; Jung, K Y; Steimle, T C ^[1]

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1. Department of Chemistry, Arizona State University, Tempe, Arizona 85287-1604 (United States)

A comparative study of the hyperfine interactions in the [ital X] [sup 2][Sigma][sup +] state of TiN and the [ital X] [sup 3][Delta] state of TiO has been performed. The [sup 48]Ti[sup 14]N([ital I]=1) hyperfine structure was determined from the analysis of 19 components of the [ital N]=1--0 and [ital N]=2--1 pure rotational transitions recorded using the pump/probe microwave-optical double resonance technique. The [sup 47]Ti([ital I]=5/2) hyperfine structure of [ital X] [sup 2][Sigma][sup +] TiN was determined from an analysis of the high resolution optical spectrum of the (0,0) [ital A] [sup 2][Pi][sub 3/2]--[ital X] [sup 2][Sigma][sup +] band system. The resulting parameters are (in MHz) [ital B]([sup 48]Ti[sup 14]N)=18 589.3513(13), [ital D]([sup 48]Ti[sup 14]N)=0.026 31(18), [gamma]([sup 48]Ti[sup 14]N)=[minus]52.2070(13), [ital b][sub [ital F]](N)=18.480(3), [ital c](N)=0.166(7), [ital eQq][sub 0](N)=[minus]1.514(8), [ital C][sub [ital I]](N)=0.0137(12), [ital b][sub [ital F]]([sup 47]Ti) =[minus]558.8(11), [ital c]([sup 47]Ti)=[minus]15(5), and [ital eQq][sub 0]([sup 47]Ti)=62(16). An analysis of the (0,0) band of the [ital B] [sup 3][Pi]--[ital X] [sup 3][Delta] system of [sup 47]Ti[sup 16]O produced the [ital X] [sup 3][Delta] hyperfine parameters (in MHz): [ital a]([sup 47]Ti) =[minus]54.7(21), ([ital b][sub [ital F]]+2[ital c]/3)([sup 47]Ti)=[minus]231.6(60), and [ital eQq][sub 0]([sup 47]Ti)=[minus]49(31). An interpretation based upon the predicted nature of the bonding in TiO and TiN is given.

• DOE Contract Number: FG02-91ER14227
• OSTI ID: 6023551
• Journal Information: Journal of Chemical Physics; (United States), Journal Name: Journal of Chemical Physics; (United States) Vol. 99:6; ISSN JCPSA6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

664400* -- Experimentally Derived Information on Atomic & Molecular Properties-- (1992-)
74 ATOMIC AND MOLECULAR PHYSICS
BINARY MIXTURES
CHALCOGENIDES
DISPERSIONS
DOUBLE RESONANCE METHODS
ELECTROMAGNETIC RADIATION
ENERGY LEVELS
EVEN-EVEN NUCLEI
EXCITED STATES
GROUND STATES
HYPERFINE STRUCTURE
INTERMEDIATE MASS NUCLEI
ISOTOPES
LIGHT NUCLEI
MICROWAVE RADIATION
MIXTURES
NITRIDES
NITROGEN 14
NITROGEN COMPOUNDS
NITROGEN ISOTOPES
NUCLEI
ODD-ODD NUCLEI
OPTICS
OXIDES
OXYGEN COMPOUNDS
PNICTIDES
RADIATIONS
ROTATIONAL STATES
STABLE ISOTOPES
TITANIUM 48
TITANIUM COMPOUNDS
TITANIUM ISOTOPES
TITANIUM NITRIDES
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS