Professor Emeritus, Inorganic Chemistry
Biography
Professor Haworth obtained his B.S. from the University of Wisconsin--Oshkosh in 1950, his M.S. from Marquette University in 1952, with additional graduate work at the Oak Ridge School of Reactor Technology, 1953. He received his Ph.D. from St. Louis University in 1959. Professor Haworth was awarded the Faculty Award for Teaching Excellence in 1971.
Research Fields
We are pursuing the structure of products obtained from the reaction of tetrasulfur tetranitride with anhydrous metal salts by use of IR and Raman spectroscopy. The nature of the metal-nitrogen and metal-sulfur bonding is being correlated with theoretical studies. In particular we have examined the compound which contain the pure inorganic ligand, M(S2N2H)2. Several studies have also been initiated in the synthesis of metal chelates with M(S2N2H)2 which contain an organobridging ligand.
Dynamic NMR computer simulation and infrared studies of fluxional molecules is another project under investigation. Attention in particular has been given to metal diketonate complexes, M(acac)2X2 and M(acac)3 where M is Ti, Al, Ga, Si or Sn. The mechanism for these rearrangements is uncertain but it is known to be intramolecular. The synthesis, NMR and IR studies of monothio-beta-diketonate chelates is also of interest. We are also examining some beta diketonate acac-metal complex soaps. Studies related to PEX spectra of these metal diketonate compounds is also being examined.
Theoretical studies related to the nature of the bonding in the borazine complex of chromium - Cr(B3H3N3H3)(CO)3 has been reported. The borazine ring is not planar in this p-complex and a rotational energy of the nitrogen atoms of the borazine ring eclipsed over the 3 - CO ligands to one where the boron atoms are eclipsed over the 3 - CO ligands is 18.5 kcal.
The X-ray structure of a number of metal clusters and transition metal complexes has also been done - some of which are reported below.
Of particular interest to those graduates who remember Dr. Clifford R. Haymaker, Dr. John Eisch (B.S. 1952) and I have written an article on his professorial career (see below). Reprints of this article are available upon request. Dr. Eisch is professor of chemistry at the State University of New York at Binghamton where he is currently distinguished professor of chemistry.
Selected Publications
- D. T. Haworth and J. J. Eisch, "The Professorial Career of Clifford R. Haymaker: A Life of Chemistry Imagined and Bequeathed," J. Chem. Ed., 80, 275(2003).
- D. T. Haworth, D. W. Bennett, T. A. Siddiquee, N. J. Wallock, and W. A. Donaldson, "Crystal and Molecular Structure of N-(bicycle[5.1.0]octa-3,5-dien-2-yl)phthalimide, C16H13NO2", J. Chem. Crystallography, 33, 209(2003). R
- D. T. Haworth, D. W. Bennett, T. A. Siddiquee, S. E. Kabir, S. Pervin, N. C. Sarker, A. Yesmin, A. Sharmin, and K.M. Abdul Malik, "Synthesis, Structures and Reactivity of bis(diphenylphosphino)-methane (dppm)-substituted Selenido Osmium Carbonyl Clusters", J. Organomet. Chem., 681, 237(2003). R
- D. T. Haworth, D. W. Bennett, T. A. Siddiquee, K. L. Murphy, Z. He, and W. D. Donaldson, "Crystal and Molecular Structure of a Steroidal Spirocyclic Lactone, C29H34O4", J. Chem. Crystallography, 33, 897(2003). R
- D. T. Haworth, S. Chaudhury, W. A. Donaldson, D. W. Bennett, T. A. Siddiquee, and J. M. Kloss, "Synthesis and Reactivity of Tricarbonyl(1-methoxycarbonyl-5-phenylpentadienyl)iron(1+) cation", J. Organomet. Chem, 689, 1437(2004). R
- D. T. Haworth, S. E. Kabir, N. Begum, M. Hassan, I. Hyder, H. Nur, D. W. Bennett, T. A. Siddiquee, E. Rosenberg, "Addition of Diphenyl Diselenide (PhSeSePh) to the Clusters [Os3(CO)10(µ-dppm)] and [(µ-H)Os3(CO)8{Ph2PCH2P(Ph)C6H4}]: X-ray Structures of [Os2(CO)4(µ-SePh)2(µ-dppm)], [Os3(CO)6(µ-CO)(µ-Se)2(µ-C6H4)(µ-dppm)] and Two Isomers of [Os3(CO)8 (µ-SePh)2(µ-dppm)]", J. Organomet. Chem, 689, 1569(2004). R
-
D. T. Haworth, D. W. Bennett, N. L. Wagner, and K. L. Murphy, “Main Group Compounds. Para-substituted Aryl Isocyanides”, Inorganic Syntheses, 34, 24(2004). R
-
D. T. Haworth, D. W. Bennett, T. A. Siddiquee, S. E. Kabir, and F. K. Camellia, “The Crystal and Molecular Structure of Trans-tetracarbonylbis(triphenyl-phosphine)chromium(0) in a New Unit Cell: Is the Trans Conformer More Stable Than the cis?”, Journal of Chemical Crystallography, 34, 353(2004). R
-
D. T. Haworth, D. W. Bennett, T. A. Siddiquee, S. E. Kabir, Md. Hyder, and S. J. Ahmed, “Carbon-hydrogen and Carbon-phosphorus Bond Cleavage in a Triruthenium Cluster Complex Containing dppm: The Crystal and Molecular Structures of Ru3(CO)6{μ3-OPPh2 C2H(C6H4)PPhCh2PPh}(μ3-OPPh2)Ph and Ru3(CO)6{μ-OPPh2C2H(C6H4)PPhO}(μ-PPh2) (μ-PPh2O)”, Journal of Chemical Crystallography, 34, 361(2004). R
-
D. T. Haworth, T. Akter, N. Begum, D. W. Bennett, S. E. Kabir, Md. A. Miah, N. C. Sarker, T. A. Siddiquee, E. Rosenberg, “Hexa- and Triosmium Carbonyl Clusters Bearing Bridging dppm and Capping Sulfido Ligands”, J. Organomet. Chem., 689, 2571 (2004) R
D. T. Haworth, S. E. Kabir, S. J. Ahmed, M. I. Hyder, M. A. Miah, D. W. Bennett, T. A. Siddiquee, E. Rosenberg, “Triruthenium Clusters Containing Bridging dppm and Capping Sulfido and Selenido Ligands: X-ray structures of [Ru3(CO)5(μ3-CO) (μ3-Se)(μ-dppm)2], [Ru3(CO)6(μ3-CO) (μ3-Se) (μ-dppm)(η1-Ph2PCH2P(=O)Ph2)] and [Ru2(CO)4(μ-SePh)2(μ-dppm)]”, J. Organomet. Chem., 689, 3412 (2004). R
- D. T. Haworth, D. W. Bennett, T. A. Siddiquee, M. Das, “The Crystal and Molecular Structure of a Bismonothioacetylacetonate Complex of Copper, Cu(CH3CSCHCOCH3)2: An Analysis of cis vs. trans Isomerism”, J. Chemical Crystallography, 34, 865 (2004). R
- D. T. Haworth, N. Begum, D. W. Bennett, G. M. Hossain, S. E. Shariff, A. Sharmin, T. A. Siddiquee, E. Rosenberg, "Reactions of Unsaturated Quinoline Triosmium Clusters [Os3(CO)9(μ3-η2-C9H5(4-R)N)(μ-H)] (R = Me or H) with Tetramethylthiourea: X-ray Structures of [Os3(CO)8(μ-η2-C9H5(4-Me)N)(η2-SC(NMe2NCH2Me)(μ-H)2] and [Os3(CO)9(μ-η2-C9H6N)(η1-SC(NMe2)2(μ-H)]", J. Cluster Science, 16, 413 (2005). R
- D. T. Haworth, M. R. Bartell, D. J. Campbell, K. E. Korte, J. T. McCann, Y. Xia, "Classroom Scale Demonstrations Using Flash Ignition of Carbon Nanotubes", J. Chemical Education, 83, 1511 (2006). R
Klingler College of Arts & Sciences
