Kass Group Publications

Tian, Z.; Kass, S. R. "Does Electrospray Ionization Produce Gas-Phase or Liquid-Phase Structures?" J. Am. Chem. Soc. accepted for publication.

Tian, Z.; Radom, L.; Sullivan, M. M.; Chan, B.; Kass, S. R. "Lithium Monoxide Anion–: A Ground-State Triplet With Record-Breaking Basicity" Proc. Natl. Acad. Sci. 2008, 105, 7647-7651 (Also see: Chem. Eng. News 2008, 86, 23).

Tian, Z.; Lis, L.; Kass, S. R. "Hydrogen-Deuterium Exchange and Selective Labeling of Deprotonated Amino Acids and Peptides in the Gas Phase" J. Am. Chem. Soc. 2008, 130, 8-9.

Tian, Z.; Kass, S. R. "A Redetermination of the Heats of Formation of Chloro- and Dichlorocarbene and the Deprotonation of Methyl Cation, A Spin Forbidden Process?*" Int. J. Mass Spectrom. 2007, 267, 288-294(invited contribution).

Tian, Z.; Poutsma, J. C.; Pawlow, A.; Kass, S. R. "Are Carboxyl Groups the Most Acidic Sites in Amino Acids? Gas Phase Acidity, H/D Exchange Experiments, and Computations on Cysteine and Its Conjugate Base" J. Am. Chem. Soc. 2007, 129, 5403-5407.

Pratt, L. M.; Truhlar, D. G.; Cramer, C. J.; Kass, S. R.; Thompson, J. D.; Xidos, J. D. "Aggregation of Alkyllithiums in Tetrahydrofuran" J. Org. Chem. 2007, 72, 2962-2966.

Tian, Z.; Fattahi, A.; Lis, L.; Kass, S. R. "Cycloalkane and Cycloalkene C–H Bond Dissociation Energies" J. Am. Chem. Soc. 2006, 128, 17087-17092.

Tian, Z.; Kass, S. R. "Organic gas-phase ion chemistry" Annu. Rep. Prog. Chem. Sect. B: Org. Chem. 2006, 102, 290-324 (invited contribution).

Fattahi, A.; Lis, L.; Tian, Z.; Kass, S. R. "The Heat of Formation of Cyclobutadiene" Angew. Chem. Int. Ed. Engl. 2006, 45, 4984-4988 (Highlighted article, see: Sci. 2006, 313, 275 and Bally, T. Angew. Chem. Int. Ed. Engl. 2006, 45, 6616-6619).

Kass, S. R. "Zwitterion-Dianion Complexes and Anion-Anion Clusters with Negative Dissociation Energies" J. Am. Chem. Soc. 2005, 127, 13098-13099.

Fattahi, A.; Lis, L.; Kass, S. R. "Experimental Determination of the Heat of Hydrogenation of Phenylcyclobutadiene" J. Am. Chem. Soc. 2005, 127, 13065-13069.

Fattahi, A.; Kass, S. R.; Liebman, J. F.; Matos, M. A. R.; Miranda, M. S.; Morais, V. M. F. "The Enthalpies of Formation of o-, m-, and p-Benzoquinone: Gas-Phase Ion Energetics, Combustion Calorimetry, and Quantum Chemical Computations Combined" J. Am. Chem. Soc. 2005, 127, 6116-6122.

Fattahi, A.; Kass, S. R. "Correlating Acidities, Electron Affinities, and Bond Dissociation Energies. Measure One, Get All Three!" J. Org. Chem. 2004, 69, 9176-9183.

Pratt, L. M.; Fattahi, A.; Kass, S. R. "Tetrafluorobenzyne Thermochemistry: Experiment and Theory" Eur. J. Mass Spectrom. 2004, 10, 813-818 (invited contribution).

Kass, S. R. "Anion-Induced Elimination Reactions" Encyclopedia of Mass Spectrometry 2004, 4, 567-574 (invited contribution).

Kass, S. R. "Stereoselective Carbanion Reactions" Encyclopedia of Mass Spectrometry 2004, 4, 491-495 (invited contribution).

Pratt, L. M.; Kass, S. R. " Lithiated Hydrocarbons, Their Conjugate Bases and Corresponding Radicals: A Computational Study of RLi (R=CH3, CH3CH2, CH2=CH, and HCºC)" J. Org. Chem. 2004, 69, 2123-2127.

Fattahi, A.; McCarthy, R. E.; Ahmad, M. R.; Kass, S. R. "Why Does Cyclopropene Have The Acidity of An Acetylene but the Bond Energy of Methane?" J. Am. Chem. Soc. 2003, 125, 11746-11750.

Kass, S. "Unimolecular Rearrangements of Carbanions" Encyclopedia of Mass Spectrometry 2003, 1, 633-641 (invited contribution).

Kass, S. "Strained Ring and Highly Basic Carbanions" Encyclopedia of Mass Spectrometry 2003, 1, 658-664 (invited contribution).

Ahmad, M. R.; Kass, S. R. "Unimolecular Rearrangements and Fragmentations in the Gas Phase: [1,3] Sigmatropic Isomerizations and [2 + 2] Cycloreversions" Aust. J. Chem. 2003, 56, 453-458 (invited contribution).

Wang, X. -B.; Dacres, J. E.; Yang, X.; Lis, L.; Bedell, V. M.; Wang, L. -S.; Kass, S. R. "Photodetachment of Zwitterions: Probing Intramolecular Coulomb Repulsion and Attraction in the Gas Phase Using Mono Decarboxylated Pyridinium Dicarboxylates. Implications on the Mechanism of Orotidine 5'-Monophosphate Decarboxylase" J. Am. Chem. Soc. 2003, 125, 6814-6826.

Reed, D. R.; Hare, M. C.; Chung, G.; Fattahi, A.; Gordon, M. S.; Kass, S. R. "o-, m-, and p-Dehydrophenol Radical Anions: Formation, Reactivity, and Energetics Leading To The Heats of Formation of o-, m-, and p-Oxocyclohexadienylidene" J. Am. Chem. Soc. 2003, 125, 4643-4651.

Wang, X. -B.; Dacres, J. E.; Yang, X.; Broadus, K. M.; Lis, L.; Wang, L. -S.; Kass, S. R. "Photodetachment of Zwitterions: Probing Intramolecular Coulomb Repulsion and Attraction in the Gas Phase Using Pyridinium Dicarboxylate Anions" J. Am. Chem. Soc. 2003, 125, 296-304.

Antol, I.; Glasovac, Z.; Hare, M. C.; Eckert-Maksic, M.; Kass, S. R. "On the Acidity of Cyclopropanaphthalenes. Gas Phase and Computational Studies" Int. J. Mass Spectrom. 2003, 222, 11-26 (invited contribution).

Broadus, K. M.; Kass, S. R. "Reactive Intermediates via Fourier Transform Mass Spectrometry" J. Phys. Org. Chem. 2002, 15, 461-468 (invited contribution).

Glasovac, Z.; Eckert-Maksic, M.; Dacres, J. E.; Kass, S. R. "Gas phase formation of 1-phenylcyclobuten-3-yl and 1-phenylallyl anions and a determination of the allylic C–H acidities and bond dissociation energies of 1-phenylcyclobutene and trans-1-phenylpropene" J. Chem. Soc. Perkin Trans 2 2002, 410-415.

Reed, D. R.; Kass, S. R.; Mondanaro, K. R.; Dailey, W. P. "Formation of a 1-Bicyclo[1.1.1]pentyl Anion and an Experimental Determination of the Acidity and C-H Bond Dissociation Energy of 3-tert-Butylbicyclo[1.1.1]pentane" J. Am. Chem. Soc. 2002, 124, 2790-2795.

Lis, L.; Koltun, E.; Liu, H-w.; Kass, S. R. "Ring Scission Of Diastereomeric 4-Butylspiropentylcarbinyl Radicals As A Chemical Model For Identifying Enzyme-Catalyzed FAD Adducts Resulting From Spiropentylacetyl-CoA" J. Am. Chem. Soc. 2002, 124, 1276-1287.

Reed, D. R.; Kass, S. R. "Hydrogen-Deuterium Exchange at Non-Labile Sites: A New Reaction Facet With Broad Implications for Structural and Dynamic Determinations" J. Am. Soc. Mass Spectrom. 2001, 12, 1163-1168 (Highlighted article, see: Anal. Chem. 2001, 73, 584A).

Hare, M. C.; Marimanikkuppam, S. S.; Kass, S. R. "Acetamide enolate: Formation, reactivity, and proton affinity" Int. J. Mass Spectrom. 2001, 210/211, 153-163.

Broadus, K. M.; Kass, S. R. "The Electron as a Protecting Group. 3. Generation of Acenaphthyne Radical Anion and an Experimental Determination of the Heat of Formation of a Strained Cycloalkyne" J. Am. Chem. Soc. 2001, 123, 4189-4196.

Broadus, K. M.; Han, S.; Kass, S. R. "Rearrangements of Aryl Substituted Cyclopropenyl Anions and the Gas-Phase Acidity of a Simple Aryl Cyclopropene" J. Org. Chem. 2001, 66, 99-106.

Chung, G.; Pak, M. V.; Reed, D. R.; Kass, S. R.; Gordon, M. S. "Theoretical Study of Oxocyclohexadienylidene Isomers: Electronic Structures and Molecular Properties", J. Phys. Chem. Soc. A 2000, 104, 11822-11828.

Broadus, K. M.; Kass, S. R.; Osswald, T.; Prinzbach, H. "Dodecahedryl Anion Formation and an Experimental Determination of the Acidity and C-H Bond Dissociation Energy of Dodecahedrane" J. Am. Chem. Soc. 2000, 122, 10964-10968.

Broadus, K. M.; Kass, S. R. "The Electron as a Protecting Group. 2. Generation of Benzocyclobutadiene Radical Anion in the Gas Phase and an Experimental Determination of the Heat of Formation of Benzocyclobutadiene" J. Am. Chem. Soc. 2000, 122, 10697-10703.

Reed, D. R.; Hare, M. C.; Kass, S. R. "Formation of Gas-Phase Dianions and Distonic Ions As A General Method for the Synthesis of Protected Reactive Intermediates. Energetics of 2,3- and 2,6-Dehydronaphthalene" J. Am. Chem. Soc. 2000, 122, 10689-10696.

Broadus, K. M.; Kass, S. R. "Benzocyclobutadienyl Anion: Formation and Energetics of an Antiaromatic Molecule" J. Org. Chem. 2000, 65, 6566-6571.

Broadus, K. M.; Kass, S. R. "Probing Electrostatic Effects: Formation and Characterization of Zwitterionic Ions and Their "Neutral" Counterparts in the Gas Phase" J. Am. Chem. Soc. 2000, 122, 9014-9018.

Wang, X.-B.; Broadus, K. M.; Wang, L.-S.; Kass, S. R. "Photodetachment of the First Zwitterionic Anions in the Gas Phase: Probing Intramolecular Coulomb Repulsion and Attraction" J. Am. Chem. Soc. 2000, 122, 8305-8306 (Also see: Chem. Eng. News 2000, 78, 32).

Koltun, E. S.; Kass, S. R. "Synthesis of 3,5-Cyclooctadienol and 3,5-Cyclooctadienone. SeO2/O2 Oxidation of Dienes" Synthesis 2000, 10, 1366-1368.

Han, S.; Hare, M. C.; Kass, S. R. "The gas-phase acidity of cyclopropene and simple alkyl derivatives: Can they be measured?" Int. J. Mass Spectrom. Ion Proc. 2000, 201, 101-108 (invited contribution).

Koltun, E. S.; Kass, S. R. "Synthesis and Reactivity of trans-Tricyclo[4.2.0.01,3]oct-4-ene" J. Org. Chem. 2000, 65, 3530-3537.

Koltun, E. S.; Kass, S. R. "Rearrangement of the trans-Tricyclo[4.2.0.01,3]oct-4-enyl Skeleton", Tetrahedron 2000, 56, 2591-2594.

Reed, D. R.; Kass, S. R. "An Experimental Determination of the &alpha and &beta C-H Bond Dissociation Energies in Naphthalene" J. Mass Spectrom. 2000, 35, 534-539.

Glasovac, Z.; Eckert-Maksic, M.; Broadus, K. M.; Hare, M. C.; Kass, S. R. "Benzocyclo-butene: The Impact of Fusing a Strained Ring on to Benzene" J. Org. Chem. 2000, 65, 1818-1824.

Baschky, M. C.; Kass, S. R. "Temperature and Pressure Effects on the Elimination Reactions of Diethyl Ether" Int. J. Mass Spectrom. Ion Proc. 2000, 195/196, 411-418 (invited contribution).

Broadus, K. M.; Kass, S. R. "Benzocyclobutenone Enolate: An Anion With An Antiaromatic Resonance Structure" J. Chem. Soc. Perkin Trans 2 1999, 2389-2396 (invited contribution).

Han, S.; Arrowood, T. L.; Young, Jr., V. G.; Kass, S. R. "The Structure and Thermal Stability of 1,2-Dimethoxycarbonyl-3,3-dimethylcyclopropene" Structural Chemistry 1999, 10, 349-354.

Merrill, G. N.; Zoller, U.; Reed, D. R.; Kass, S. R. "The Formation and Characterization of Three-Membered Ring Carbanions in the Gas Phase: An Experimental and Theoretical Investigation of the Conjugate Bases of Thiirane, Thiirane-S-oxide, and Thiirane-S,S-dioxide" J. Org. Chem. 1999, 64, 7395-7406.

Arrowood, T. L.; Kass, S. R. "Formation of Transient and Long-Lived Cyclopropenyl Anions" J. Am. Chem. Soc. 1999, 121, 7272-7273 (Also see: Chem. Eng. News 1999, 77, 27).

Han, S.; Kass, S. R. "Synthesis of 3-Aryl-3-trimethylsilylcyclopropenes and Their Dibenzoyl Derivatives. Possible Cyclopropenyl Anion Precursors?" J. Chem. Soc. Perkin Trans 1 1999, 1553-1558.

Arrowood, T. L.; Kass, S. R. "Synthesis and Thermolysis of 3-Substituted 3-Trimethylsilylcyclopropenes" Tetrahedron 1999, 55, 6739-6748.

Broadus, K.; Kass, S. R. "The Conjugate Base of an Alicyclic Hydrazine: Formation and Energetics of N-Diaziridyl Anion" Int. J. of Mass Spectrom. Ion Proc. 1999, 185/186/187, 179-187 (invited contribution).

Bachrach, S. M.; Hare, M.; Kass, S. R. "Alkali Metal Salts of Dianions: A Theoretical and Experimental Study of (C6H4)–2 M+, M = Li and Na" J. Am. Chem. Soc. 1998, 120, 12646-12649.

Clifford, E. P.; Wenthold, P. G.; Lineberger, W. C.; Petersson, G. A.; Broadus, K. M.; Kass, S. R.; Kato, S.; DePuy, C. H.; Bierbaum, V. M.; Ellison, G. B. "The Properties of Diazocarbene [CNN] and the Diazomethyl Radical [HCNN] via Ion Chemistry and Spectroscopy" J. Phys. Chem. 1998, 102, 7100-7112.

Merrill, G. N.; Kass, S. R. "A High-Level Ab Initio and Density Functional Investigation of Cyclopropenyl Anion and Its Mono-, Di-, and Trisubstituted Derivatives" J. Am. Chem. Soc. 1997, 119, 12322-12337.

Gronert, S.; Kass, S. R. "Theoretical Studies of Eliminations 6. The Regiochemistry and Stereochemistry of the Gas-Phase Reactions of 3-Halocyclohexenes with Fluoride. An Ab Initio Study" J. Org. Chem. 1997, 62, 7991-8000.

Dombrowski, G. W.; Gassman, P. G.; Kass, S. R. "Rearrangement Pathways of the Tricyclo[4.1.0.01,3]heptyl Skeleton" Tetrahedron Letts. 1997, 38, 7819-7822.

Han, S.; Kass, S. R. "The Synthesis of Potential Cyclopropenyl Anion Precursors: 3-Methyl-3-trimethylsilylcyclopropene and Its Dibenzoyl Derivative" Tetrahedron Letts. 1997, 38, 7503-7506.

Moore, L.; Lubinski, R.; Baschky, M. C.; Dahlke, G. D.; Hare, M.; Arrowood, T.; Glasovac, Z.; Eckert-Maksic, M.; Kass, S. R. "Benzocyclopropenyl Anion: A Stable 8? Electron Species" J. Org. Chem. 1997, 62, 7390-7396.

Hare, M.; Emrick, T.; Eaton, P.; Kass, S. R. "Cubyl Anion Formation and an Experimental Determination of the Acidity and C-H Bond Dissociation Energy of Cubane" J. Am. Chem. Soc. 1997, 119, 237-238 (Also see: Chem. Eng. News 1997, 75, 36-37).

Merrill, G. N.; Gronert, S.; Kass, S. R. "A Systematic Study of the Potential Energy Surface for the Base-Induced Elimination Reaction of Fluoride Ion With Ethyl Fluoride Using Density Functional Theory" J. Phys. Chem. A 1997, 101, 208-218.

Merrill, G. N.; Kass, S. R. "Calculated Gas Phase Acidities Using Density Functional Theory: Is It Reliable?" J. Phys. Chem. 1996, 100, 17465-17471.

Merrill, G. N.; Dahlke, G. D.; Kass, S. R. " &beta -Cyanoethyl Anion: lusus naturae" J. Am. Chem. Soc. 1996, 118, 4462-4468.

Ahmad, M. R.; Kass, S. R. "The Thio-Wittig Rearrangement of Deprotonated Allyl Methyl Sulfide. A Gas Phase Unimolecular Isomerization Probed With A Tandem Variable Temperature Flowing Afterglow-Triple Quadrupole Device" J. Am. Chem. Soc. 1996, 118, 1398-1407.

Baschky, M. C.; Sowa, Jr., J. R.; Gassman, P. G.; Kass, S. R. "The Gas-Phase Generation of Trifluoromethyl Cyclopentadienides" J. Chem. Soc., Perkins Trans. 2 1996, 213-215.

Torborg, C. J.; Rabasco, J. J.; Kass, S. R. "Nucleophilic Substitution Gone Awry: A Novel Cyclopropanation Reaction With A Surprising Stereochemical Outcome", Tetrahedron Letts. 1995, 36, 6025-6028.

Gordon, M. S.; Kass, S. R. "CHN2-: A Biradical Anion and A Potentially New Type of Reactive Intermediate" J. Phys. Chem. 1995, 99, 6548-6550. (Also see: J. Phys. Chem. A 1997, 101, 7922.)

Gronert, S.; Merrill, G. N.; Kass, S. R. "The Fluoride-Induced Elimination of Ethyl Fluoride. The Importance of High-Level Optimizations in Ab Initio and DFT Studies" J. Org. Chem. 1995, 60, 488-489.

Baschky, M. C.; Peterson, K. C.; Kass, S. R. "Stereospecificity in the Gas Phase. Formation and Characterization of Configurationally Stable Cyclopropyl Anions" J. Am. Chem. Soc. 1994, 116, 7218-7224.

Staneke, P. O.; Ingemann, S.; Nibbering, N. N. M.; Eaton, P.; Kass, S. R. "Cubene: The Stability of a Nonplanar Olefin" J. Am. Chem. Soc. 1994, 116, 6445-6446.

Rabasco, J. J.; Gronert, S.; Kass, S. R. "Stereoselectivity in 1,2-Elimination Reactions: Surprising Results" J. Am. Chem. Soc. 1994, 116, 3133-3134.

Sachs, R. K.; Kass, S. R. "3-Carbomethoxycyclopropen-3-yl Anion. Formation and Characterization of an Antiaromatic Ion" J. Am. Chem. Soc. 1994, 116, 783-784. (Also see: Chem. Eng. News 1994, 72, 36-37).

Rabasco, J. J.; Kass, S. R. "Stereoselectivity in 1,4-Elimination Reactions. The Gas Phase Reactivity of Deuterium Labeled 3-Methoxycyclohexene and 4,4-Dimethyl-3-methoxycyclo-hexene" J. Org. Chem. 1993, 58, 2633-2636.

Rabasco, J. J.; Kass, S. R. "Regioselectivity in Gas-Phase Elimination Reactions: 1,2 vs 1,4 and Allenic Ion vs Dienide Formation" Tetrahedron Letts. 1993, 34, 765-768.

Chou, P. K.; Dahlke, G. D.; Kass, S. R. "Unimolecular Rearrangements of Carbanions in the Gas Phase. II. Cyclopropyl Anions" J. Am. Chem. Soc. 1993, 115, 315-324.

Dahlke, G. D.; Kass, S. R. "The ortho-Dehydrophenoxy Anion: An Unusual Ion Formed From A Surprising Reaction" Int. J. Mass Spectrom. and Ion Proc. 1992, 117, 633-645.

Guo, H.; Kass, S. R. "Vinylcyclopropyl Anion: Structure, Reactivity, Thermodynamic Properties, and an Unusual Rearrangement" J. Am. Chem. Soc. 1992, 114, 1244-1248.

Rabasco, J. J.; Kass, S. R. "Reactions of Strong Bases With Vinyl Fluoride. Formation and Characterization of 1-Fluorovinyl Anion and The Fluoride-Acetylene Hydrogen Bonded Complex" J. Am. Soc. Mass. Spectrom. 1992, 3, 91-98.

Chou, P. K.; Kass, S. R. "Unimolecular Rearrangements in the Gas Phase. The Thermolysis of Bicyclobutyl and Phenylcyclopropyl Anion" Org. Mass. Spectrom. 1991, 26, 1039-1040.

Rabasco, J. J.; Kass, S. R. "The Gas-Phase Elimination Reaction of 3-Methoxycyclohexene: Regiochemistry" Tetrahedron Letts. 1991, 32, 4077-4080.

Dahlke, G. D.; Kass, S. R. "Substituent Effects in the Gas Phase: 1-Substituted Allyl Anions" J. Am. Chem. Soc. 1991, 113, 5566-5573.

Kroeker, R. L.; Bachrach, S. M.; Kass, S. R., "Ab Initio Calculations on the Diazirinyl Anion. A Nonaromatic Species" J. Org. Chem. 1991, 56, 4062-4064.

Chou, P. K.; Kass, S. R. "(E) and (Z) Vinyl Anions. The Formation and Characterization of Regio- and Stereoisomers in the Gas Phase" J. Am. Chem. Soc. 1991, 113, 4357-4359.

Chou, P. K; Kass, S. R., "C4H4 Negative Ions: Formation of the Bicyclo[1.1.0]but-1(3)-ene Radical Anion and An Experiental Determination of the Heat of Formation of Bicyclo[1.1.0]but-1(3)-ene" J. Am. Chem. Soc. 1991, 113, 697-698.Kroeker, R. L.; Kass, S. R, "Diazirinyl Anion: A Cyclic Four ?-Electron System" J. Am. Chem. Soc. 1990, 112, 9024-9025.

Kass, S. R.; Guo, H.; Dahlke, G. D., "The Formation and Reactivity of the Thiomethyl Anion" J. Am. Soc. Mass Spectrom. 1990, 1, 366-371.

Kass, S. R., "Hydrocarbon Acidities Calculated with MINDO/3, MNDO, and AM1" J. Comput. Chem. 1990, 11, 94-104.

Anderson, K. K.; Kass, S. R., "Vinyl Anion Synthesis In the Gas Phase" Tetrahedron Letts. 1989, 30, 3045-3048.

Kass, S. R.; Chou, P. K., "The Bicyclobutyl Anion: An Alkyl Carbanion" J. Am. Chem. Soc. 1988, 110, 7899-7900.

DePuy, C. H.; Van Doren, J. M.; Gronert, S.; Kass, S. R.; Motell, E. L.; Ellison, G. B.; Bierbaum, V., "Gas Phase Negative Ion Chemistry of Diazomethane" J. Org. Chem. 1989, 54, 1846-1850.

DePuy, C. H.; Kass, S. R.; Bean, G. P., "Formation and Reactions of Heteroaromatic Anions in the Gas Phase" J. Org. Chem. 1988, 53, 4427-4433.

Damrauer, R.; Kass, S. R.; DePuy, C. H. "Gas-Phase Acidities of Methylsilanes: C-H versus Si-H" Organometallics. 1988, 7, 637-640.

Shiner, C. S.; Vorndam, P. E.; Kass, S. R., "Gas-Phase Acidities and Heats of Formation of 2,4- and 2,5-Cyclohexadien-1-one, the Keto Tautomers of Phenol" J. Am. Chem. Soc. 1986, 108, 5699-5701.

Kass, S. R.; Filley, J.; Van Doren, J. M.; DePuy, C. H., "Nitrous Oxide in Gas Phase Ion-Molecule Chemistry: A Versatile Reagent for the Determination of Carbanion Structure" J. Am. Chem. Soc. 1986, 108, 2849-2852.

Kass, S. R.; DePuy, C. H., "Gas-Phase Ion Chemistry of Azides. The Generation of CH2=N- and CH2=NCH2-" J. Org. Chem. 1985, 50, 2874-2877.

Jones, M. E.; Kass, S. R.; Filley, J.; Barkley, R. M.; Ellison, G. B.,"Alkylation of Enolate Ions" J. Am. Chem. Soc. 1985, 107, 109-115.

Wiberg, K. B.; Kass, S. R.; de Meijere, A.; Bishop, K. C., "Electrophilic Cleavage of Cyclopropanes. Acetolysis of Bicyclic and Tricyclic Cyclopropanes" J. Am. Chem. Soc. 1985, 107, 1003-1007.

Wiberg, K. B.; Kass, S. R.; Bishop, K. C., "Electrophilic Cleavage of Cyclopropanes. Acetolysis of Bicyclo[2.1.0]pentane and Bicyclo[3.1.0]hexane" J. Am. Chem. Soc. 1985, 107, 996-1002.

Wiberg, K. B.; Kass, S. R., "Electrophilic Cleavage of Cyclopropanes Acetolysis of Alkylcyclopropanes" J. Am. Chem. Soc. 1985, 107, 988-995.

Wiberg, K. B.; Lupton, E. C., Jr.; Wasserman, D. J.; de Meijere, A.; Kass, S. R., "Enthalpies of Formation of cis- and trans-1,2-Diethylcyclopropane and cis- and trans-Bicyclo[6.1.0]-nonane. Structural Effects on Energies of Cyclopropane Rings" J. Am. Chem. Soc. 1984, 106, 1740-1744.