Hyperfine interactions in the ground states of titanium monoxide and mononitride

Journal Article · Wed Sep 15 00:00:00 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), Vol. 99:6; ISSN 0021-9606
• Country of Publication: United States
• Language: English

Related Subjects

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