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Robert P. Lemieux:  Publications

Dr. Lemieux's Research Page

 

J.C. Roberts, N. Kapernaum, F. Giesselmann and R.P. Lemieux  “The Design of Liquid Crystals with de Vries Character: Organosiloxane Mesogen with a 5-Phenylpyrimidine Core.”  J. Am. Chem. Soc., 2008, 130, 13842.

S. MacQuarrie, M. Thompson, A. Blanc, N. Mosey, R.P. Lemieux and C.M. Crudden  “Chiral Periodic Mesoporous Organosilicates Based on Axially Chiral Monomers.”  J. Am. Chem. Soc., 2008, 130, 14099.

J.C. Roberts, N. Kapernaum, F. Giesselmann, M.D. Wand and R.P. Lemieux  “Fast Switching Organosiloxane Ferroelectric Liquid Crystals.”  J. Mater. Chem., 2008, 18, 5301.

J.C. Roberts, Z.M. Hudson and R.P. Lemieux  “The Effect of Alkoxy Chain Length on the Ferroelectric Properties of Chiral Fluorenol Liquid Crystals.”  J. Mater. Chem., 2008, 18, 3361.

M.P. Thompson and R.P. Lemieux  “Chiral Induction in Nematic and Smectic C Liquid Crystal Phases by Dopants with Axially Chiral 1,11-Dimethyl-5,7-dihydrodibenz[c,e]thiepin Cores.”  J. Mater. Chem., 2007, 17, 5068.

J.G. Finden, E. Yuh, C, Huntley and R.P. Lemieux  “Ferroelectric Liquid Crystals Induced by Dopants with Axially Chiral 2,2’-Spirobiindan-1,1’-dione Cores: Ether vs. Ester Side-Chains.”  Liq. Cryst., 2007, 34, 1095.

M.P. Thompson, T. Hegmann, M.D. Wand and R.P. Lemieux  “Ferroelectric Liquid Crystal Dopants with Chiral Side-Chains Containing Two Adjacent Stereogenic Centers: Host Dependence of the Polarization Power.”  Liq. Cryst., 2007, 34, 987.

L. Li, C.D. Jones, J. Magolan and R.P. Lemieux  “Siloxane-Terminated Phenylpyrimidine Liquid Crystal Hosts.”  J. Mater. Chem., 2007, 17, 2313.

J.T.C. Wojtyk, A. Wasey, N, Xiao, P.M. Kazmaier, S. Hoz, C. Yu, R.P. Lemieux and E. Buncel  “Elucidating the Mechanism of Acidochromic Spiropyran-Merocyanine Interconversion.”  J. Phys. Chem. A, 2007, 111, 2511.

P. Montoya-Palaez, Y.S. Yuh, C. Lata, M.P. Thompson, R.P. Lemieux and C.M. Crudden “The Synthesis and Resolution of 2,2’, 4,4’, 6,6’ Chiral Biphenyl Derivatives for Application in thePreparation of Chiral Materials,” J. Org. Chem., submitted for publication.

C.S. Hartley and R.P. Lemieux
“Electroclinic Effect in Chiral SmA* Liquid Crystals Induced by Atropisomeric Biphenyl Dopants: Host Dependence and Amplification Using ElongatedAdditives,” J. Mater. Chem., submitted for publication.

T. Qinzheng, M. Mohamed, G. Nelson, C.S. Hartley, R.P. Lemieux and J.H. Horton
“Pi-Pi Stacking Interactions Measured by Chemical Force Microscopy.” Langmuir, submitted for publication.
 
J.A. McCubbin, V. Snieckus and R.P. Lemieux
“Ferroelectric Liquid Crystals with Fluoro-and Azafluorenone Cores: The Effect of Stereo-Polar Coupling.” Liq. Cryst., in press.

C.J. Boulton, J.G. Finden, E. Yuh, J.J. Sutherland, M.D. Wand, G. Wu and R.P. Lemieux “
Ferroelectric Liquid Crystals Induced by Dopants with a 2,2’-Spirobiindan-1,1’-dione Core.” J. Am. Chem. Soc., 2005, 127, 13656.

J.A. McCubbin, X. Tong, Y. Zhao, V. Snieckus and R.P. Lemieux
“Directed Metalation-Cross Coupling Route to Ferroelectric Liquid Crystals with a Chiral Fluorenol Core: The Effect ofIntermolecular Hydrogen Bonding on Polar Order.” Chem. Mater., 2005, 17, 2574.

P. Zhang, E. Buncel and R.P. Lemieux
“Compatibilization of a Photochromic DithienyletheneDopant and Ferroelectric Liquid Crystal Host via Siloxane Microsegregation.” Adv. Mater. 2005,17, 567.

C.S. Hartley, R. Wang and R.P. Lemieux
“Ferroelectric Liquid Crystals Induced by AtropisomericBiphenyl Dopants: Correlation Between the Sign of Induced Polarization and the AbsoluteConfiguration,” Chem. Mater., 2004, 16, 5297.

K.E. Maly, P. Zhang, M.D. Wand, E. Buncel and R.P. Lemieux
“Reversible Photocyclization ofAchiral Dithienylperfluorocyclopentene Dopants in a Ferroelectric Liquid Crystal: Bistable SSFLCPhotoswitching,” J. Mater. Chem., 2004, 14, 2806.

J.Z. Vlahakis, M.D. Wand and R.P. Lemieux “
Photoswitching of Ferroelectric Liquid CrystalsUsing Unsymmetrical Chiral Thioindigo Dopants: Photoinduced Inversion of the Sign of PS,” Adv. Funct. Mater., 2004, 14, 637.

C.S. Hartley and R.P. Lemieux
“Ferroelectric Liquid Crystals Induced by Atropisomeric Biphenyl Dopants: The Effect of Chiral Perturbations on Achiral Dopants,” Liq. Cryst., 2004, 31, 1101.

J.Z. Vlahakis and R.P. Lemieux
“Photoswitching of Ferroelectric Liquid Crystals Using Unsymmetrical Chiral Thioindigo Dopants: Structural Effects on Polarization Photomodulation,”
J. Mater. Chem., 2004, 14, 1486.

J.A. McCubbin, X. Tong, R. Wang, Y. Zhao, V. Snieckus and R.P. Lemieux
“Directed Metalation Route to Ferroelectric Liquid Crystals with a Chiral Fluorenol Core: The Effect of Restricted Rotation on Polar Order,” J. Am. Chem. Soc., 2004, 126, 1161.

T. Hegmann, M.R. Meadows, M.D. Wand and R.P. Lemieux
“Ferroelectric Liquid CrystalsInduced by Atropisomeric Biphenyl Dopants: Influence of the SmC Host Mixture Composition,”
J. Mater. Chem., 2004, 14, 185.
J
.Z. Vlahakis, M.D. Wand and R.P. Lemieux
“Photoinduced Polarization Inversion in a Ferroelectric Liquid Crystal Using an Ambidextrous Chiral Thioindigo Dopant,” J. Am. Chem. Soc., 2003, 125, 6862.

Boulton, Christopher J.; Sutherland, Jeffrey J.; Lemieux, Robert P..
A new dopant for ferroelectric liquid crystals with a chiral 2,2'-spirobiindan-1,1'-dione core. Journal of Materials Chemistry (2003), 13(4), 644-646.

Maly, Kenneth E.; Wand, Michael D.; Lemieux, Robert P.. Bistable ferroelectric liquid crystal photoswitch triggered by a dithienylethene dopant. [Erratum to document cited in CA137:147709]. Journal of the American Chemical Society (2003), 125(11), 3397.

Hartley, C. Scott; Lazar, Carmen; Wand, Michael D.; Lemieux, Robert P.. Detection of chiral perturbations in ferroelectric liquid crystals induced by an atropisomeric biphenyl dopant. [Erratum to document cited in CA138:18281]. Journal of the American Chemical Society (2003), 125(11), 3397.

Vlahakis, Jason Z.; Wand, Michael D.; Lemieux, Robert P.. Photoinduced Polarization Inversion in a Ferroelectric Liquid Crystal Using an Ambidextrous Chiral Thioindigo Dopant. Journal of the American Chemical Society (2003), 125(23), 6862-6863.

Maly, Kenneth E.; Wand, Michael D.; Lemieux, Robert P.. Bistable ferroelectric liquid crystal photoswitch triggered by a dithienylethene dopant. Journal of the American Chemical Society (2002), 124(27), 7898-7899.

Hartley, C. Scott; Lazar, Carmen; Wand, Michael D.; Lemieux, Robert P.. Detection of Chiral Perturbations in Ferroelectric Liquid Crystals Induced by an Atropisomeric Biphenyl Dopant. Journal of the American Chemical Society (2002), 124(45), 13513-13518.

Lazar, Carmen; Yang, Kexin; Glaser, Matthew A.; Wand, Michael D.; Lemieux, Robert P.. Ferroelectric liquid crystal induced by a bridged biphenyl dopant with helical topography. Journal of Materials Chemistry (2002), 12(3), 586-592.

Hegmann, Torsten; Lemieux, Robert P.. Large electroclinic effect in SmA* liquid crystals induced by an atropisomeric biphenyl dopant. Journal of Materials Chemistry (2002), 12(12), 3368-3370.

Lemieux, Robert P.. Chirality Transfer in Ferroelectric Liquid Crystals. Accounts of Chemical Research (2001), 34(11), 845-853.

di Matteo, Andrea; Todd, Steve M.; Gottarelli, Giovanni; Solladie, Guy; Williams, Vance E.; Lemieux, Robert P.; Ferrarini, Alberta; Spada, Gian Piero. Correlation between Molecular Structure and Helicity of Induced Chiral Nematics in Terms of Short-Range and Electrostatic-Induction Interactions. The Case of Chiral Biphenyls. Journal of the American Chemical Society (2001), 123(32), 7842-7851.

Vizitiu, Despina; Lazar, Carmen; Radke, Joshua P.; Hartley, C. Scott; Glaser, Matthew A.; Lemieux, Robert P.. Ferroelectric Liquid Crystals Induced by Atropisomeric Biphenyl Dopants: Dependence of the Polarization Power on the Nature of the Symmetry-Breaking Groups. Chemistry of Materials (2001), 13(5), 1692-1699.

Lemieux, Robert P.; Dinescu, Liviu; Maly, Kenneth E. Optical switching of a ferroelectric liquid crystal spatial light modulator using chiral thioindigo dopants. ACS Symposium Series (2001), 798(Anisotropic Organic Materials), 227-238.

Maly, Kenneth E.; Wu, Gang; Lemieux, Robert P.. Solubility of thioindigo dopants in a smectic liquid crystal host evaluated by 2H NMR spectroscopy. Liquid Crystals (2001), 28(3), 457-462.

Vlahakis, Jason Z.; Maly, Kenneth E.; Lemieux, Robert P.. Thioindigo-containing organosiloxane liquid crystals with electroclinic properties. Journal of Materials Chemistry (2001), 11(10), 2459-2464.

Lazar, Carmen; Wand, Michael D.; Lemieux, Robert P.. Chiral distortion of the binding site in a ferroelectric liquid crystal induced by an atropisomeric biphenyl dopant. Journal of the American Chemical Society (2000), 122(50), 12586-12587.

Swansburg, Susan; Buncel, Erwin; Lemieux, Robert P.. Thermal Racemization of Substituted Indolinobenzospiropyrans: Evidence of Competing Polar and Nonpolar Mechanisms. Journal of the American Chemical Society (2000), 122(28), 6594-6600.

Dinescu, Liviu; Maly, Kenneth E.; Lemieux, Robert P.. Design of photonic liquid crystal materials: synthesis and evaluation of new chiral thioindigo dopants designed to photomodulate the spontaneous polarization of ferroelectric liquid crystals. Journal of Materials Chemistry (1999), 9(8), 1679-1686.

Vizitiu, Despina; Lazar, Carmen; Halden, Brian J.; Lemieux, Robert P.. Ferroelectric Liquid Crystals Induced by Atropisomeric Dopants: Dependence of the Polarization Power on the Core Structure of the Smectic C Host. Journal of the American Chemical Society (1999), 121(36), 8229-8236.

Dinescu, Liviu; Lemieux, Robert P.. Optical switching of a ferroelectric liquid crystal spatial light modulator by photoinduced polarization inversion. Advanced Materials (Weinheim, Germany) (1999), 11(1), 42-45.

Saad, Bendaoud; Galstyan, Tigran V.; Dinescu, Liviu; Lemieux, Robert P.. Resonant photoexcitation and electrooptic switch in nematic and ferroelectric liquid crystals. Proceedings of SPIE-The International Society for Optical Engineering (1999), 3800(Liquid Crystals III), 140-148.

Xu, Zu-Sheng; Lemieux, Robert P.; Natansohn, Almeria; Rochon, Paul; Shashidhar, R. Synthesis and characterization of novel ferroelectric liquid crystals and copolymers containing biphenyl azobenzene and/or phenyl biphenyl carboxylate mesogenic groups. Liquid Crystals (1999), 26(3), 351-359.

Xu, Zu-Sheng; Lemieux, Robert P.; Natansohn, Almeria; Rochon, Paul; Shashidhar, R. Azobenzene-Assisted Alignment of Ferroelectric Liquid Crystals in the Chiral Smectic C Phase with an Alternating Current Field. Chemistry of Materials (1998), 10(11), 3269-3271.

Lemieux, Robert P.; Dinescu, Liviu. Compounds and methods for doping liquid crystal hosts for optical devices. PCT Int. Appl. (1998), 42 pp.

Caplan, Jennifer F.; Murphy, Christopher A.; Swansburg, Susan; Lemieux, Robert P.; Cameron, T. Stanley; Aquino, Manuel A. S. Evidence for room temperature mesomorphism in a mixed-valent diruthenium(II, III) quintapalmitoleate polymer. Canadian Journal of Chemistry (1998), 76(11), 1520-1523.

Vizitiu, Despina; Halden, Brian J.; Lemieux, Robert P.. Ferroelectric liquid crystals induced by atropisomeric dopants. Dependence of the polarization on the nature of the smectic C host. Ferroelectrics (1998), 212(1-4), 257-264.

Keum, Sam-Rok; Lee, Myung-Jin; Swansburg, Susan; Buncel, Erwin; Lemieux, Robert P.. Resolution and circular dichroism of a non-activated spiropyran dye: 6-(p-chlorophenylazo)-1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline] . Dyes and Pigments (1998), 39(4), 383-388.

Williams, Vance E.; Lemieux, Robert P.. Role of Dispersion and Electrostatic Forces on Solute-Solvent Interactions in a Nematic Liquid Crystal Phase. Journal of the American Chemical Society (1998), 120(44), 11311-11315.

Swansburg, Susan; Choi, Yoon-Ki; Keum, Sam-Rok; Buncel, Erwin; Lemieux, Robert P.. Synthesis and characterization of liquid crystals containing a non-activated 1',3',3'-trimethylspiro[2H-1-benzopyran-2,2'-indoline] group. Liquid Crystals (1998), 24(3), 341-346.

Vizitiu, Despina; Halden, Brian J.; Lemieux, Robert P.. Enhanced polar ordering in ferroelectric liquid crystals induced by atropisomeric dopants. Chemical Communications (Cambridge) (1997), (12), 1123-1124.

Dinescu, Liviu; Lemieux, Robert P.. Photomodulating the spontaneous polarization of a ferroelectric liquid crystal phase using chiral thioindigo dopants. Proceedings of SPIE-The International Society for Optical Engineering (1997), 3015(Liquid Crystal Materials, Devices, and Applications V), 16-20.

Dinescu, Liviu; Lemieux, Robert P.. Photomodulation of the Spontaneous Polarization of a Ferroelectric Liquid Crystal: Harnessing the Transverse Dipole Modulation of a Chiral Thioindigo Dopant. Journal of the American Chemical Society (1997), 119(34), 8111-8112.

Roszak, Aleksander W.; Williams, Vance E.; Lemieux, Robert P.. (+-)-1,11-Dimethyl-3,9-dinitro-5,7-dihydrodibenz[c,e]oxepine. Acta Crystallographica, Section C: Crystal Structure Communications (1996), C52(12), 3190-3193.

Yang, Kexin; Campbell, Bryan; Birch, Glenn; Williams, Vance E.; Lemieux, Robert P.. Induction of a Ferroelectric SC* Liquid Crystal Phase by an Atropisomeric Dopant Derived from 4,4'-Dihydroxy-2,2'-dimethyl-6,6'-dinitrobiphenyl. Journal of the American Chemical Society (1996), 118(40), 9557-9561.

Dinescu, Liviu; Lemieux, Robert P.. Modulating the spontaneous polarization of a ferroelectric liquid crystal via the photoisomerization of a chiral thioindigo dopant: (R,R)-6,6'-bis(1-methylheptyloxy)thioindigo. Liquid Crystals (1996), 20(6), 741-749.

Williams, Vance E.; Lemieux, Robert P.. Substituent effects in the induction of a cholesteric liquid crystal phase by atropisomeric dibenzoxepins: a study of arene-arene interactions. Chemical Communications (Cambridge) (1996), (19), 2259-2260.

Williams, Vance E.; Lemieux, Robert P.; Thatcher, Gregory R. J. Substituent Effects on the Stability of Arene-Arene Complexes: An AM1 Study of the Conformational Equilibria of cis-1,3-Diphenylcyclohexanes. Journal of Organic Chemistry (1996), 61(6), 1927-33.