Positions

Overview

  • Larry Krannich is Professor Emeritus of Chemistry at the University of Alabama at Birmingham where he was Department Chair for 27 years and facilitated the development of the department through strategic planning initiatives. Since retiring, he has served as Interim Director of the UAB Center for Community OutReach Development, and continues as the Executive Director of the Alabama Academy of Science.

    Throughout his career, he maintained a strong emphasis on the development of a high quality undergraduate chemistry program and creation of outreach programs for Alabama science teachers. Outreach programs have varied from developing laboratory workshops for high school teachers to the operation of laboratory activity-based, in-service programs to the initiation of an NSF GK-12 program.

    Larry has been an active ACS member since 1964 and involved in governance at the local section, regional, and national levels. He is an ACS Fellow. As a member of the ACS Board of Directors (2010-2013) he was on its Executive Committee and Planning Committee, as well as several Board committees, and chaired the Board’s Professional and Member Relations Committee. He chaired the Leadership Skills Implementation Working Group (2005-2009) that designed the system framework and oversaw the development of the learning assets for the ACS Leadership Development System. In addition to serving as co-chair of the Leadership Advisory Board, he facilitates Engaging and Motivation Volunteers, Coaching and Feedback, Engaging Colleagues in Dialogue, Strategic Planning, and Extraordinary Leaders leadership workshops. He also co-facilitates Strategic Planning Retreats. Since 2009, he co-chairs the ACS Leadership Advisory Board. In 2009, he received the Ann E. Nalley Southeastern Volunteer Service Award.

    For relaxation, Larry enjoys outdoor activities that have taken him on hiking, camping, and cycling adventure trips throughout the US and elsewhere in the world.
  • Selected Publications

    Academic Article

    Year Title Altmetric
    2013 Official reports from the June 2013 ACS board of directors meeting 2013
    2002 Synthesis and molecular structure studies of [Me2AlN(i-Pr)CH2PH]2 and the related orthometalated dimers [RAlN(i-Pr)-μ-(CH2C6H4)]2, where R = Me, n-Pr, n-Bu, i-Bu 2002
    2002 A comparison of the NMR, mass spectral, and molecular structure data for [R2A1N(CH2PH)2]2, where R = Me, Et, Prn, Bun, and Bui 2002
    2002 Reactivity of Me3M (M = A1, Ga, In) with benzylamine to form the dimers, [Me2MN(H)CH2Ph]2, and the hexamers, [MeA1NCH2Ph]6 and [MeGaNCH2Ph]6: Molecular structures of trans-[Me2MN(H)CH2Ph]2 and [MeA1NCH2Ph]6 2002
    2001 Synthesis and molecular structural studies of a series of orthometalated dimers [RAIN(t-Bu)-μ-(CH2C6H4)]2, where R = Me, Et, n-Pr, n-Bu, i-Bu 2001
    2000 Synthesis, NMR characterization, and molecular structural studies of a series of ortho-metalated aluminum-nitrogen dimers 2000
    1999 Reactivity studies of trimethylaluminum, trimethylgallium, and trimethylindium with a series of five silylamines: Molecular structure of trans-[Me2InN(Me)SiMe3]2 1999
    1999 Reactivity of triethylaluminum with a series of secondary amines.: Adduct and aminoalane dimer synthesis and characterization; The crystal structures of [Et2AlN(c-C6H11)2]2 and [Et2AlNC4H8NCH3]2 1999
    1999 X-ray structural analysis of Me3M·HN(CH2Ph)2 (M=Ga, In) adducts 1999
    1998 Synthesis and characterization of an orthometalated aminoalane, [MeAlN(CH2Ph)-μ-(CH2C6H4)] 2: Molecular structures of [MeAlN(CH2Ph)-μ-(CH2C6H4)] 2 and [Me2AlN(CH2Ph)2]2 1998
    1998 The molecular structures of tris(dimethylamino)-phosphane, -arsane and -stibane, E(NMe2)3, E = P, As or Sb and Me = CH3, by gas electron diffraction and ab initio molecular orbital calculations 1998
    1997 Synthesis and characterization of a series of aminogallanes, [Me2GaR]2 the crystal structures of [Me2GaN(CH2Ph)2]2 and [Me2GaN(CH2CH2)2NMe]2 1997
    1997 Molecular Structure of Tris(dimethylamino)arsenic and -antimony as Studied by Gas-Phase Electron Diffraction and ab initio Calculations 1997
    1996 Synthesis and molecular structure of an orthometalated aminogallane, [MeGaN(CH2C6H4)(CH2Ph)]2 1996
    1996 Reactivity of R2AlH (R = Me, Bui) and Me3M (M = Al, Ga, In) toward the silylphosphines P(SiMe3)3 and HP(SiMe3)2 1996
    1996 Reactivity of R2AlH (R = Me, Bui) with selected aminoarsines and secondary amines 1996
    1995 27Al and 13C NMR Relaxation Studies of Aminoalanes 1995
    1995 H2- versus HSiMe3-Elimination in the Reactivity of HP(SiMe3)2 with Me2AlH To Yield a Mixed Organoaluminum Phosphide Trimer 1995
    1995 Synthesis and characterization of Me3Ga and Me3In: Adducts of secondary amines 1995
    1994 The reactivity of dimethylaluminum hydride with the aminoarsines Me2AsNMe2, MeAs(NMe2)2, and As(NMe2)3 1994
    1993 Reactions of As(NMe2)3 and Sb(NMe2)3 with aluminum and magnesium alkylating agents 1993
    1993 Reactivity of (Me3Al)2 with selected aminoarsines and secondary amines 1993
    1992 Heteroleptic tertiary arsines, me2sr: Synthesis and an nmr study 1992
    1992 Borane coordination selectivity towards aminoarsines 1992
    1991 Reactivity of μ-Me2NB2H5 toward the As-N Bond 1991
    1991 Synthesis and nmr (1h and 13c) study of (monoamino) dimethylarsines 1991
    1990 Tertiary Arsines: A New Synthesis Route and an NMR Study 1990
    1990 Multinuclear NMR studies of the reactions of (Me3Al)2 with Me2AsNMe2, MeAs(NMe2)2 and As(NMe2)3 1990
    1989 Evidence for the Donor Capacity of Nitrogen in Acyclic Aminophosphines: A Multinuclear NMR Study 1989
    1989 13C and 1H NMR studies of some aminoarsonium chlorides 1989
    1988 The formation of unsymmetric diarsines from the reaction of aminoarsines and secondary organoarsines 1988
    1988 A new synthetic route to aminophosphines 1988
    1987 An NMR investigation of the reactions of secondary organoarsines with symmetric diarsines and diphosphines 1987
    1987 NMR studies of the reaction of MeAsH2 with Me2AsAsMe2 1987
    1987 A New Synthetic Route to Cyclic Polyarsines 1987
    1987 Synthesis of cyclic polyarsines 1987
    1987 Multinuclear NMR studies of the reactions of MeAsH2 with Me2AsNMe2 and Me2AsNMe2·BH3 1987
    1987 13C and 31P NMR studies of some aminophosphonium chlorides 1987
    1987 Effect of intramolecular and intermolecular exchange processes on the 1H NMR spectra of 2‐chloro‐1,3,2‐dioxarsolanes 1987
    1987 Formation of N-B- and P-B-Bonded BH3 Adducts of Me2PNMe2 1987
    1987 The reactivities of aminoarsines toward diarsines 1987
    1986 Synthesis and characterization of some aminoarsonium chlorides 1986
    1986 Determination of the bonding preference of borane (BH<inf>3</inf>) toward aminoarsines by multinuclear nuclear magnetic resonance spectroscopy 1986
    1986 NMR Studies of the Reactions of Me2AsH with Me2AsNMe2 and Me2AsNMe2•BH3: Synthetic Routes to Me2AsAsMe2 1986
    1985 Synthesis and characterization of some aminophosphonium chlorides 1985
    1985 Aminoarsolanes-II. Conformational studies 1985
    1985 Formation of a New 1:1 Addition Compound of Borane with Aminoarsine 1985
    1980 Aminoarsolanes. 1. Transamination and Ammonolysis Studies 1980
    1977 A pre-general chemistry course for the underprepared student 1977
    1973 Reactions of Ammonia and Ammonia-Chloramine Mixtures with Monochloroarsines and Diarsines and X-Ray Crystallographic Study of 2, 2, 4, 4, 6, 6-Hexaphenylcyclotriarsazene, [(C6H5)2 AsN]3 1973
    1972 Reactions of Dimethylchloramine and Ammonia-Free Chloramine with Trialkylarsines and Phenarsazines 1972
    1969 Reactions of chloramine, dimethylchloramine, and chlorine with arsine, primary arsines, and secondary arsines 1969
    1969 The temperature dependence of the nuclear magnetic resonance spectrum of cyclopentamethylpentaarsine in various solvents 1969
    1967 The Reactions of Dimethylaminophosphines With Dimethylchloramine 1967

    Research Overview

  • Throughout his career he was engaged in collaborative research directed toward a fundamental understanding of the reactivity of organo-alanes, gallanes, and indanes with organo-phosphines and arsines to develop synthetic strategies to the heavier Group 13/15 bonded compounds. This research has been approached through a combination of our expertise in NMR spectroscopy and main group synthesis. This has led to the (a) successful application of variable temparature multinuclear NMR to elucidate reaction pathways in borane(or trialkylaluminum or trialkylgallium)/aminoarsine (or aminophosphine or aminostibine) reaction systems; (b) NMR spectral characterization of 13/15 compounds; and (c ) use of the solution NMR studies to fashion novel synthetic pathways to arsines and As-B, As- Al, As-Ga, Al-N, and Ga-N species. We have applied this approach to deduce the reaction pathways that occur in the reactions of Me2AlH with aminoarsines and aminophosphines. The results have led to new synthetic routes to As-H, P- H, As-As, P-P, Al-As, Al-P, and Al-N bond containing species. Of particular interest is the development of a novel methodology for the synthesis of phosphino- and arsinoalane ring compounds and the possible extension of this to the unknown stibino- and bismuthinoalanes. We have shown that Me2AlH readily attacks the [Me2AlNMe2]2 to form species such as Me2AlNMe2 HAlMe2 and [Me2AlNMe2-HAlMe2]2. We also elucidated the pathway to the formation of orthometallated Al-N and Ga-N dimers in the thermolysis of secondary amine adducts of Me3Al, Me3Ga, and Me3In.

    Simultaneously, there has been a continued dedication to enhance the quality of science education in Alabama through outreach and in-service programs for Alabama science teachers. The focus has always been on novel laboratory-based activities for direct implementation into the school classroom or laboratory with funding from the NSF and ACHE.

    Through the NSF GK-12 program (PI with 6 years of NSF funding) and collaborations involving the Schools of Education, Medicine, and Natural Sciences and Mathematics and the McWane Science Center, we developed a model outreach program that provided fellowships and training to enable graduate and advanced undergraduate science students to serve as resources in K-12 science education in the Birmingham metropolitan area. This was built on the existing science outreach infrastructure involving UAB and the local school systems. Fellows received an overview of learning theory and pedagogy, as advocated by the National Science Education Standards, and were then trained in the specific outreach program to which they are assigned. Science equipment, materials, and curricula were delivered to K-12 students and teachers received professional development. NSF fellows provided expertise in science content while being incorporated into the teaching, curriculum development, hands-on science instruction, and mentoring activities with K-12 teachers and students in the local school systems. In a synergistic way while mentoring Fellows in K-12 classrooms and labs, K-12 teachers transferred to the Fellows experiential knowledge of how people learn and the application of appropriate pedagogical techniques to facilitate learning.

    Keywords - General chemistry, advanced inorganic chemistry, chemical problem solving, inorganic chemistry, chemical applications of group theory, in-service teacher courses at the graduate level
  • Full Name

  • Larry Krannich