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Philip Squattrito (Professor)

Ph.D., Northwestern University, 1987

M.S., Northwestern University, 1983

Sc.B., Brown University, 1982

Office:    Dow 356

Phone:    (989) 774 - 4407

Fax:        (989) 774 - 3883

E-mail:    squat1pj@mail.cmich.edu

Additional Information at: Dr. Squattrito's Home Page

Teaching Emphasis:

General Chemistry and Inorganic Chemistry

Research Program and Goals:

My main interest is the structural chemistry of inorganic compounds with framework or layer structures, and certain classes of coordination complexes. Projects underway involve the synthesis of new compounds and their characterization by a variety of techniques, including thermogravimetry, IR, NMR, and powder XRD. Compounds for which suitable crystals can be obtained are studied by single crystal X-ray diffraction to determine their crystal structures. These results are analyzed in terms of the relationship between the coordination behavior of metals in these solids and their crystal structures, as well as how the structures fit into existing patterns. Specific compounds of interest include salts formed by metal ions and organosulfonate anions RSO₃^- in which R may be a functionalized phenyl or naphthyl goup. In this case, we are looking at how the specific layering patterns vary based on the identity of the R group. A second area of study are transition metalcomplexes of thione- and amine-substituted triazole ligands, in which the observed coordination geometries are found to vary in unexpected ways based on the identity of an additional organic group on the triazole ring.

Selected Publications:

1. "Structures of Transition and Alkaline Earth Metal Salts of 5-Aminonaphthalene-2-Sulfonate and 6-Aminonaphthalene-1,3-Disulfonate: Some Unusual Coordination Behaviors", Spring M. Downer, Philip J. Squattrito, Naima Bestaoui, and Abraham Clearfield, J. Chem. Crystallogr. 36, 487 (2006).

2. "Structure of 4-Amino-3-butyl-1,2,4-triazole-5-thione: Relation to Derivatives with H, Me, Et, and Pr in the 3-Position", La Keya A. Belcher and Philip J. Squattrito, J. Chem. Crystallogr. 36, 175 (2006).

3. "The pH Dependent Phase Transfer of an Organometallic Complex: Synthesis, Characterization, and Crystal Structure of a W(0) Tetracarbonyl with an Acidic Pyridine-Imine Ligand", Brian P. Buffin, Philip J. Squattrito, and Abiola O. Ojewole, Inorg. Chem. Commun. 7, 14 (2004).

4. "Structures of Divalent Transition Metal Salts of 4-Aminonaphthalene-1-sulfonate: Unexpected Variations in Layering Pattern", Jill E. Morris, Philip J. Squattrito, Kristin Kirschbaum and A. Alan Pinkerton, J. Chem. Crystallogr. 33, 307 (2003).

5. "Coordination Geometries of Bis(4-amino-3-alkyl-1,2,4-triazole-5-thione) Complexes of First Row Transition Metals: Crystal Structures of the Cobalt and Nickel Complexes of 4-Amino-3-trifluoromethyl-1,2,4-triazole-5-thione", Christopher M. Menzies and Philip J. Squattrito, Inorg. Chim. Acta314, 194 (2001).

6. "Structure Determination of a Twinned Rb(H₂NC₁₀H₆SO₃).H₂O Crystal and Comparison to Related Alkali Metal Aminonaphthalenesulfonates", Anthony Martin, Damon Parrish, A. Alan Pinkerton, Brian J. Gunderman and Philip J. Squattrito, Z. Anorg. Allg. Chem. 627, 206 (2001).

7. "Coordination Geometries of Bis(4-amino-3-alkyl-1,2,4-triazole-5-thione) Complexes of First Row Transition Metals: Crystal Structures of Complexes with Propyl and Hydrogen in the 3-Position. Relationship to the 3-Methyl and 3-Ethyl Analogs", Robert M. McCarrick, Martin J. Eltzroth, Philip J. Squattrito, Inorg. Chim. Acta 311, 95 (2000).

8. "4-Fluoro-2-(phosphonomethyl)benzenesulfonic Acid Monohydrate", Fabrizio Adani, Enzo Montoneri and Philip J. Squattrito, Acta Crystallogr., Sec. C 56, 463 (2000).

9. "Coordination Geometries of Bis(4-amino-3-ethyl-1,2,4-triazole-5-thione) Complexes of Mn, Fe, Co, Ni, Cu, and Zn: Relationship to the 3-Methyl Analogs", Todd W. Kajdan,Philip J. Squattrito and Surendra N. Dubey, Inorg. Chim. Acta, 300-302, 1082 (2000).