@article{wilcox_losey_folmer_martin_zeller_sommer_2015, title={Crystalline and Liquid Structure of Zinc Chloride Trihydrate: A Unique Ionic Liquid}, volume={54}, ISSN={0020-1669 1520-510X}, url={http://dx.doi.org/10.1021/ic5024532}, DOI={10.1021/ic5024532}, abstractNote={The water/ZnCl(2) phase diagram in the vicinity of the 75 mol % water composition is reported, demonstrating the existence of a congruently melting phase. Single crystals of this 3-equiv hydrate were grown, and the crystal structure of [Zn(OH(2))(6)][ZnCl(4)] was determined. Synchrotron X-ray and neutron diffraction and IR and Raman spectroscopy along with reverse Monte Carlo modeling demonstrate that a CsCl-type packing of the molecular ions persists into the liquid state. Consistent with the crystalline and liquid structural data, IR spectroscopy demonstrates that the O-H bonds of coordinated water do not exhibit strong intermolecular hydrogen ion bonding but are significantly weakened because of the water's coordination to Lewis acidic zinc ions. The O-H bond weakening makes this system a very strong hydrogen-bond donor, whereas the ionic packing along with the nonpolar geometry of the molecular ions makes this system a novel nonpolar, hydrogen-bonding, ionic liquid solvent.}, number={3}, journal={Inorganic Chemistry}, publisher={American Chemical Society (ACS)}, author={Wilcox, Robert J. and Losey, Bradley P. and Folmer, Jacob C. W. and Martin, James D. and Zeller, Matthias and Sommer, Roger}, year={2015}, month={Jan}, pages={1109–1119} }
 @article{wilcox_folmer_kennemur_martin_2016, title={Synthesis of luminescent nitroxobenzene oligomers by aluminum chloride catalyzed dehydration of nitrobenzene}, volume={103}, ISSN={0277-5387}, url={http://dx.doi.org/10.1016/j.poly.2015.07.077}, DOI={10.1016/j.poly.2015.07.077}, abstractNote={Under solvothermal reaction conditions, nitrobenzene is heated in the presence of aluminum chloride to yield a luminescent and paramagnetic low molecular weight polymeric material along with AlCl3·(H2O)6. MALDI mass spectral analysis demonstrates that the repeat unit consists of the biphenyl moiety (ONC6H3–ONC6H4). Four distinct fractions are isolated based on differential solubility characteristics. The primary differentiating features of these fractions appear to be their considerably different conjugation and branching characteristics. A radical mechanism, consistent with the formation of Wheland intermediates is proposed to account for the observed mass spec, IR, UV–Vis, EPR and size exclusion chromatographic data. Luminescence spectroscopy data is also provided demonstrating the white light emission exhibited by these polymers.}, number={Part A}, journal={Polyhedron}, publisher={Elsevier BV}, author={Wilcox, Robert J. and Folmer, Jacob C.W. and Kennemur, Justin G. and Martin, James D.}, year={2016}, month={Jan}, pages={35–43} }
 @article{williams_saggese_wilcox_martin_muddiman_2007, title={Effect of matrix crystal structure on ion abundance of carbohydrates by matrix-assisted laser desorption/ionization Fourier transform ion cyclotron resonance mass spectrometry}, volume={21}, ISSN={["0951-4198"]}, url={http://europepmc.org/abstract/med/17279479}, DOI={10.1002/rcm.2904}, abstractNote={AbstractSample preparation techniques for carbohydrate analysis using matrix‐assisted laser desorption/ionization mass spectrometry (MALDI‐MS) are explored, with particular emphasis on analyte/matrix co‐crystallization procedures. While carbohydrates are known to prefer 2,5‐dihydroxybenzoic acid (2,5‐DHB) as the matrix of choice, these analytes are quite specific about matrix crystal structure, which in turn is dependent on the rate of drying of analyte/matrix spots on the MALDI target. With N‐acetylglucosamine (GlcNAc) and N‐acetylneuraminic acid (sialic acid or NeuAc) as test monosaccharides, significant increases in ion abundances are demonstrated with 2,5‐DHB/NeuAc spots (>10‐fold improvement) and 2,5‐DHB/GlcNAc spots (∼5‐fold improvement) with active drying. The fine structure of crystals generated in active and passive drying was investigated using powder diffraction. Passively dried samples were shown to consist of an ordered polymorph, crystallizing in the space group P21/a, while the actively dried samples produced a disordered phase crystallizing in the space group Pa. These data provide the wherewithal to engineer a matrix best suited for carbohydrate analyses. Copyright © 2007 John Wiley & Sons, Ltd.}, number={5}, journal={RAPID COMMUNICATIONS IN MASS SPECTROMETRY}, author={Williams, Taufika Islam and Saggese, Diana A. and Wilcox, Robert J. and Martin, James D. and Muddiman, David C.}, year={2007}, pages={807–811} }