研究领域

Inorganic Chemistry

Dr. Kolis' group studies the synthesis and chemistry of novel inorganic compounds with unusual structures and properties. The group is particularly interested in chemistry under very unusual reaction conditions, such as with very high temperatures and pressures or in exotic solvents. One area of interest is the synthesis of solid-state inorganic compounds in supercritical fluids. When water or any other fluid is heated to very high temperatures and pressures (>400°C and 2000 atmospheres), it adopts chemical properties that are unknown under any other circumstance. The technique is an extension of the natural processes occurring deep in the earth in hydrothermal vents. Dr. Kolis' group uses this technology in the labs to grow single crystals of inorganic materials such as metal borates, silicates, phosphates, anadates and nitrides. These materials typically have properties that make them useful in new technology, particularly optics. For example, metal borates can act as nonlinear optical materials in the deep ultraviolet. Other materials under investigation include metal vanadates and tungstates, which are used as laser hosts and detectors.

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Underwood CC, Mann M, McMillen CD, Musgraves JD, & Kolis JW (2012) The polymorphism of CsThF5. Solid State Sciences 14(5):574-579. Underwood CC, McMillen CD, & Kolis JW (2012) The Crystal Structures of CsTh6F25 and NaTh3F13. Journal of Chemical Crystallography 42(6):606-610. Stritzinger J, McMillen CD, & Kolis JW (2012) Hydrothermal Synthesis and Single Crystal Structures of New Thorium Fluorides: A(3)Ba(2)Th(3)F(19) (A = Na, K, Rb). Journal of Chemical Crystallography 42(4):366-371. McMillen CD, Emirdag-Eanes M, Stritzinger JT, & Kolis JW (2012) Hydrothermal synthesis of new rare earth silicate fluorides: A novel class of polar materials. Journal of Solid State Chemistry 195:155-160. McMillen CD & Kolis JW (2012) Bulk single crystal growth from hydrothermal solutions. Philosophical Magazine 92(19-21):2686-2711. McMillen CD, Mann M, Fan JH, Zhu L, & Kolis JW (2012) Revisiting the Hydrothermal growth of YAG. Journal of Crystal Growth 356:58-64. McMillen CD, Stritzinger JT, & Kolis JW (2012) Two Novel Acentric Borate Fluorides: M3B6O11F2 (M = Sr, Ba). Inorganic Chemistry 51(7):3953-3955. Kimani MM, McMillen CD, & Kolis JW (2012) Hydrothermal Synthesis and Comparative Coordination Chemistry of New Rare-Earth V4+ Compounds. Inorganic Chemistry 51(6):3588-3596. Kimani MM, Thompson L, Snider W, McMillen CD, & Kolis JW (2012) Hydrothermal Synthesis and Spectroscopic Properties of a New Glaserite Material, K3RE(VO4)(2) (RE = Sc, Y, Dy, Ho, Er, Yb, Lu, or Tm) with Potential Lasing and Optical Properties. Inorganic Chemistry 51(24):13271-13280. Underwood, C. C.; Mann, M.; McMillen, C. D.; Kolis, J. W., Hydrothermal Descriptive Chemistry and Single Crystal Structure Determination of Cesium and Rubidium Thorium Fluorides. Inorganic Chemistry 2011, 50 (22), 11825-11831. Abbott, E. E.; Mann, M.; Kolis, J. W., Hydrothermal synthesis of compounds in the fresnoite mineral family (Ba2TiSi2O8). Journal of Solid State Chemistry 2011, 184 (5), 1257-1262. McMillen, C.; Heyward, C.; Giesber, H.; Kolis, J., Crystal structures of the novel hydrated borates Ba2B5O9(OH), Sr2B5O9(OH) and Li2Sr8B22O41(OH)(2). Journal of Solid State Chemistry 2011, 184 (11), 2966-2971. McMillen, C.; Thompson, D.; Tritt, T.; Kolis, J., Hydrothermal Single-Crystal Growth of Lu2O3 and Lanthanide-Doped Lu2O3. Crystal Growth & Design 2011, 11 (10), 4386-4391. McMillen, C. D.; Kolis, J. W., Hydrothermal Synthesis and Crystal Structures of Two Novel Acentric Mixed Alkaline Earth Metal Berylloborates Sr3Be2B5O12(OH) and Ba3Be2B5O12(OH). Inorganic Chemistry 2011, 50 (14), 6809-6813. Heyward, C.; Mann, M.; Kolis, J., Hydrothermally synthesized alpha-Ba2P2O7. Acta Crystallographica Section E-Structure Reports Online 2010, 66, I84-U186. Mann, M.; Abbott, E. E.; Kolis, J. W., Hydrothermal crystal growth of fresnoite. Journal of Crystal Growth 2010, 312 (22), 3395-3400. Mann, M.; Jackson, S.; Kolis, J., Hydrothermal crystal growth of the potassium niobate and potassium tantalate family of crystals. Journal of Solid State Chemistry 2010, 183 (11), 2675-2680. Mann, M.; Kolis, J., Synthesis and Structural Characterization of K3Th2(PO4)(3)F-2 and RbThPO4F2 as Potential Nuclear Waste Storage Materials. Journal of Chemical Crystallography 2010, 40 (4), 337-342. Mann, M.; Kolis, J., Hydrothermal crystal growth of yttrium and rare earth stabilized hafnia. Journal of Crystal Growth 2010, 312 (3), 461-465. Mann, M.; Thompson, D.; Serivalsatit, K.; Tritt, T. M.; Ballato, J.; Kolis, J., Hydrothermal Growth and Thermal Property Characterization of ThO2 Single Crystals. Crystal Growth & Design 2010, 10 (5), 2146-2151. McMillen, C.; Hawkins, T.; Foy, P.; Mulwee, D.; Kolis, J.; Stolen, R.; Rice, R.; Ballato, J., On crystallographic orientation in crystal core optical fibers. Optical Materials 2010, 32 (9), 862-867. Mann, M.; Kolis, J., Ba2Ti2Si2O9F2, a new titanium silicate. Acta Crystallographica Section C-Crystal Structure Communications 2009, 65, I17-I19. Mann, M.; Kolis, J.; VanDerveer, D., K-3(Sc0.875Nb0.125)Nb2O9H1.75: a new scandium niobate with a unique cage structure. Acta Crystallographica Section C-Crystal Structure Communications 2009, 65, I27-I29. McMillen, C. D.; Hu, J.; VanDerveer, D.; Kolis, J. W., Trigonal structures of ABe(2)BO(3)F(2) (A = Rb, Cs, Tl) crystals. Acta Crystallographica Section B-Structural Science 2009, 65, 445-449. Forbes, A. R.; McMillen, C. D.; Giesber, H. G.; Kolis, J. W., The hydrothermal synthesis, solubility and crystal growth of YVO4 and Nd:YVO4. Journal of Crystal Growth 2008, 310 (20), 4472-4476. McMillen, C. D.; Giesber, H. G.; Kolis, J. W., The hydrothermal synthesis, growth, and optical properties of gamma-LiBO2. Journal of Crystal Growth 2008, 310 (2), 299-305. McMillen, C. D.; Kolis, J. W., Hydrothermal single crystal growth of Sc2O3 and lanthanide-doped Sc2O3. Journal of Crystal Growth 2008, 310 (7-9), 1939-1942. McMillen, C. D.; Kolis, J. W., Hydrothermal crystal growth of ABe(2)BO(3)F(2) (A = K, Rb, Cs, Tl) NLO crystals. Journal of Crystal Growth 2008, 310 (7-9), 2033-2038. Tang, X. F.; He, J.; Aaron, K.; Abbott, E.; Kolis, J. K.; Tritt, T. M., Single-crystal growth of NaxCo2O4 via a novel low-temperature flux method. Journal of Crystal Growth 2008, 310 (3), 665-670.