Suchada Rajca

  • 4187 Citations
  • 43 h-Index
1989 …2019
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Research Output 1989 2019

  • 4187 Citations
  • 43 h-Index
  • 85 Article
  • 2 Comment/debate
  • 2 Letter
  • 1 Conference article
1989
8 Citations (Scopus)

Theoretical Calculations on the Interaction of CO with MgO and CaO

Utamapanya, S., Ortiz, J. V. & Klabunde, K. J., Feb 1989, In : Journal of the American Chemical Society. 111, 3, p. 799-802 4 p.

Research output: Contribution to journalArticle

Carbon Monoxide
Ligands
Geometry
Metals
1991
73 Citations (Scopus)

Control of Magnetic Interactions in Polyarylmethyl Triplet Diradicals Using Steric Hindrance

Rajca, A., Utamapanya, S. & Xu, J., Nov 1 1991, In : Journal of the American Chemical Society. 113, 24, p. 9235-9241 7 p.

Research output: Contribution to journalArticle

SQUIDs
Voltammetry
Ultraviolet spectroscopy
Paramagnetic resonance
Spectrum Analysis
337 Citations (Scopus)
Magnesium Hydroxide
Magnesium Oxide
Magnesia
Crystallite size
Oxides
52 Citations (Scopus)
Anions
Negative ions
Electrons
Paramagnetic resonance
Spectrum Analysis
1992
72 Citations (Scopus)

Poly(arylmethyl) Octet (S = 7/2) Heptaradical and Undecet (S = 5) Decaradical

Rajca, A., Utamapanya, S. & Thayumanavan, S., Feb 1 1992, In : Journal of the American Chemical Society. 114, 5, p. 1884-1885 2 p.

Research output: Contribution to journalLetter

44 Citations (Scopus)
Hydrocarbons
Ultraviolet spectroscopy
Electronic structure
Voltammetry
Paramagnetic resonance
1993
20 Citations (Scopus)

High-Spin Polymers. Synthesis of 1,3-Connected Polyarylmethane and Its Carbopolyanion and Polyradical

Utamapanya, S., Kakegawa, H., Bryant, L. & Rajca, A., Aug 1993, In : Chemistry of Materials. 5, 8, p. 1053-1055 3 p.

Research output: Contribution to journalArticle

Polymers
114 Citations (Scopus)

Nanoscale Metal Oxide Particles as Chemical Reagents. Intrinsic Effects of Particle Size on Hydroxyl Content and on Reactivity and Acid/Base Properties of Ultrafine Magnesium Oxide

Itoh, H., Utamapanya, S., Stark, J. V., Klabunde, K. J. & Schlup, J. R., Jan 1 1993, In : Chemistry of Materials. 5, 1, p. 71-77 7 p.

Research output: Contribution to journalArticle

Magnesium Oxide
Magnesia
Hydroxyl Radical
Oxides
Metals
19 Citations (Scopus)

Near-Degeneracy between the Low- and High-Spin States in an Alternant Hydrocarbon Diradical: Topology and Geometry

Rajca, A., Utamapanya, S. & Smithhisler, D. J., Jan 1 1993, In : Journal of Organic Chemistry. 58, 21, p. 5650-5652 3 p.

Research output: Contribution to journalArticle

Hydrocarbons
Topology
Magnetic fields
Hamiltonians
Geometry
76 Citations (Scopus)

Poly(arylmethyl) Quartet Triradicals and Quintet Tetraradicals

Rajca, A. & Utamapanya, S., Mar 1 1993, In : Journal of the American Chemical Society. 115, 6, p. 2396-2401 6 p.

Research output: Contribution to journalArticle

Magnetometry
SQUIDs
Paramagnetic resonance
Spectrum Analysis
Hot Temperature
88 Citations (Scopus)
Magnetometry
Synthetic Chemistry Techniques
Methyl Ethers
Benzoic Acid
Magnetic Fields
1994
48 Citations (Scopus)
Ground state
Paramagnetic resonance
Magnetization
Defects
Molecules
1995
33 Citations (Scopus)

Boron-centred diradical dianion: A new triplet state molecule

Rajca, A., Rajca, S. & Desai, S. R., Dec 1 1995, In : Journal of the Chemical Society, Chemical Communications. 19, p. 1957-1958 2 p.

Research output: Contribution to journalArticle

Boron
Sodium
Molecules
2-methyltetrahydrofuran
tetrahydrofuran
81 Citations (Scopus)

Macrocyclic π-Conjugated Carbopolyanions and Polyradicals Based upon Calix[4]arene and Calix[3]arene Rings

Rajca, A., Rajca, S. & Desai, S. R., Jan 1995, In : Journal of the American Chemical Society. 117, 2, p. 806-816 11 p.

Research output: Contribution to journalArticle

Oxidation
Polyethers
Voltammetry
Dimers
Nuclear magnetic resonance spectroscopy
67 Citations (Scopus)
Electrons
Molecules
Anions
Negative ions
Electrochemistry
1996
66 Citations (Scopus)

Biphenylene dimer. Molecular fragment of a two-dimensional carbon net and double-stranded polymer

Rajca, A., Safronov, A., Rajca, S., Ross, C. R. & Stezowski, J. J., Aug 7 1996, In : Journal of the American Chemical Society. 118, 31, p. 7272-7279 8 p.

Research output: Contribution to journalArticle

Dimers
Anions
Polymers
Negative ions
Carbon
45 Citations (Scopus)

Intramolecular antiferromagnetic vs ferromagnetic spin coupling through the biphenyl unit

Rajca, A. & Rajca, S., Aug 28 1996, In : Journal of the American Chemical Society. 118, 34, p. 8121-8126 6 p.

Research output: Contribution to journalArticle

Magnetometry
Isomers
Ground state
Spectrum Analysis
Theoretical Models
1997
49 Citations (Scopus)

Double Helical Octaphenylene

Rajca, A., Safronov, A., Rajca, S. & Shoemaker, R., Jan 1 1997, In : Angewandte Chemie (International Edition in English). 36, 5, p. 488-491 4 p.

Research output: Contribution to journalArticle

Chirality
Polymers
56 Citations (Scopus)

High-spin polyarylmethyl polyradical: Fragment of a macrocyclic 2-strand based upon calix[4]arene rings

Rajca, A., Lu, K. & Rajca, S., Nov 25 1997, In : Journal of the American Chemical Society. 119, 43, p. 10335-10345 11 p.

Research output: Contribution to journalArticle

Temperature
Magnetometry
Electrons
Deuterium
SQUIDs
55 Citations (Scopus)
Rubiaceae
Hamiltonians
Magnetization
Temperature
Magnetic Fields
11 Citations (Scopus)

Peroxides of Sterically Hindered Derivatives of Schlenk Hydrocarbon Diradical

Rajca, A., Rajca, S., Desai, S. R. & Day, V. W., Jan 1 1997, In : Journal of Organic Chemistry. 62, 19, p. 6524-6528 5 p.

Research output: Contribution to journalArticle

Peroxides
Hydrocarbons
Derivatives
X ray crystallography
Oxygen
1998
87 Citations (Scopus)

A dendritic macrocyclic organic polyradical with a very high spin of S = 10

Rajca, A., Wongsriratanakul, J., Rajca, S. & Cerny, R., May 18 1998, In : Angewandte Chemie - International Edition. 37, 9, p. 1229-1232 4 p.

Research output: Contribution to journalArticle

Ground state
Molecules
28 Citations (Scopus)
Hydrocarbons
Ground state
SQUIDs
Isomers
Paramagnetic resonance
1999
28 Citations (Scopus)

Singlet-triplet bistability in a 1,3-phenylene-based bis(aminoxyl) diradical

Rajca, A., Lu, K., Rajca, S. & Ross, C. R., Jul 7 1999, In : Chemical Communications. 13, p. 1249-1250 2 p.

Research output: Contribution to journalArticle

Rapid quenching
Cryogenics
Temperature
Ground state
2-methyltetrahydrofuran
99 Citations (Scopus)

Very high-spin organic polymer: π-Conjugated hydrocarbon network with average spin of S ≥ 40 [2]

Rajca, A., Rajca, S. & Wongsriratanakul, J., Jul 7 1999, In : Journal of the American Chemical Society. 121, 26, p. 6308-6309 2 p.

Research output: Contribution to journalLetter

Organic polymers
Hydrocarbons
Polymers
2000
97 Citations (Scopus)

Annelated heptathiophene: A fragment of a carbon - Sulfur helix

Rajca, A., Wang, H., Pink, M. & Rajca, S., Dec 15 2000, In : Angewandte Chemie - International Edition. 39, 24, p. 4481-4483 3 p.

Research output: Contribution to journalArticle

Thiophenes
Thiophene
Sulfur
Carbon
56 Citations (Scopus)

D2-Symmetric dimer of 1,1'-binaphthyl and its chiral π-conjugated carbodianion

Rajca, A., Safronov, A., Rajca, S. & Wongsriratanakul, J., Apr 12 2000, In : Journal of the American Chemical Society. 122, 14, p. 3351-3357 7 p.

Research output: Contribution to journalArticle

Naphthalene
Dimers
Point groups
X ray crystallography
X Ray Crystallography
10 Citations (Scopus)

Singlet-triplet energy gap in a cyclophane-based organic diradical with parallel exchange coupling pathways

Rajca, A., Rajca, S. & Wongsriratanakul, J., Jun 21 2000, In : Chemical Communications. 12, p. 1021-1022 2 p.

Research output: Contribution to journalArticle

Exchange coupling
SQUIDs
Ground state
Paramagnetic resonance
Energy gap
2001
8 Citations (Scopus)
Crystallography
X ray crystallography
X Ray Crystallography
Magnetism
Manganese
46 Citations (Scopus)

A Greek cross dodecaphenylene: Sparteine-mediated asymmetric synthesis of chiral D2-symmetric π-conjugated tetra-o-phenylenes

Rajca, A., Wang, H., Bolshov, P. & Rajca, S., Apr 23 2001, In : Tetrahedron. 57, 17, p. 3725-3735 11 p.

Research output: Contribution to journalArticle

Sparteine
Point groups
X ray crystallography
X Ray Crystallography
Crystal symmetry
298 Citations (Scopus)

Magnetic ordering in an organic polymer

Rajca, A., Wongsriratanakul, J. & Rajca, S., Nov 16 2001, In : Science. 294, 5546, p. 1503-1505 3 p.

Research output: Contribution to journalArticle

Polymers
Temperature
Magnetic Fields
Glass
15 Citations (Scopus)

Polyarylmethyl polyradicals as organic spin clusters

Rajca, S. & Rajca, A., Jan 1 2001, In : Journal of Solid State Chemistry. 159, 2, p. 460-465 6 p.

Research output: Contribution to journalArticle

Ground state
Polymers
Molecules
quantum numbers
ground state
2003
4 Citations (Scopus)

Synthesis and conductivity of binaphthyl-based conjugated polymers

Li, J., Rajca, A. & Rajca, S., Apr 4 2003, In : Synthetic Metals. 137, 1-3, p. 1507-1508 2 p.

Research output: Contribution to journalConference article

Thiophenes
Conjugated polymers
Thiophene
thiophenes
conductivity
2004
65 Citations (Scopus)

Chiral molecular glass: Synthesis and characterization of enantiomerically pure thiophene-based [7]helicene

Miyasaka, M., Rajca, A., Pink, M. & Rajca, S., Dec 3 2004, In : Chemistry - A European Journal. 10, 24, p. 6531-6539 9 p.

Research output: Contribution to journalArticle

Thiophenes
Chirality
Thiophene
Glass
Enantiomers
141 Citations (Scopus)

Helically annelated and cross-conjugated oligothiophenes: Asymmetric synthesis, resolution, and characterization of a carbon-sulfur [7]helicene

Rajca, A., Miyasaka, M., Pink, M., Wang, H. & Rajca, S., Nov 24 2004, In : Journal of the American Chemical Society. 126, 46, p. 15211-15222 12 p.

Research output: Contribution to journalArticle

Thiophenes
Thiophene
Sulfur
Carbon
Enantiomers
49 Citations (Scopus)

Organic spin clusters: Annelated macrocyclic polyarylmethyl polyradicals and a polymer with very high spin S = 6-18

Rajca, A., Wongsriratanakul, J., Rajca, S. & Cerny, R., Jul 5 2004, In : Chemistry - A European Journal. 10, 13, p. 3144-3157 14 p.

Research output: Contribution to journalArticle

Polymers
Ether
Ethers
Hamiltonians
Temperature
74 Citations (Scopus)

Organic spin clusters: Macrocyclic-macrocyclic polyarylmethyl polyradicals with very high spin S = 5-13

Rajca, A., Wongsriratanakul, J. & Rajca, S., Jun 2 2004, In : Journal of the American Chemical Society. 126, 21, p. 6608-6626 19 p.

Research output: Contribution to journalArticle

Magnetometry
Small Angle Scattering
Stereoisomerism
Neutrons
Magnetic Resonance Spectroscopy
66 Citations (Scopus)
Small Angle Scattering
Anisotropy
Neutrons
Neutron scattering
Magnetization
2005
126 Citations (Scopus)

Cross-conjugated oligothiophenes derived from the (C2S) n helix: Asymmetric synthesis and structure of carbon-sulfur [11]helicene

Miyasaka, M., Rajca, A., Pink, M. & Rajca, S., Oct 12 2005, In : Journal of the American Chemical Society. 127, 40, p. 13806-13807 2 p.

Research output: Contribution to journalArticle

Sparteine
Optical band gaps
Sulfur
Polymers
Carbon
32 Citations (Scopus)

Stable hydrocarbon diradical, an analogue of trimethylenemethane

Rajca, A., Shiraishi, K., Vale, M., Han, H. & Rajca, S., Jun 29 2005, In : Journal of the American Chemical Society. 127, 25, p. 9014-9020 7 p.

Research output: Contribution to journalArticle

Hydrocarbons
Paramagnetic resonance
SQUIDs
Ground state
Absorption spectra
31 Citations (Scopus)

Triplet ground state (S = 1) pegylated bis(aminoxyl) diradical: Synthesis and the effect of water on magnetic properties

Spagnol, G., Shiraishi, K., Rajca, S. & Rajca, A., Oct 28 2005, In : Chemical Communications. 40, p. 5047-5049 3 p.

Research output: Contribution to journalArticle

Ground state
Conformations
Magnetic properties
Water
58 Citations (Scopus)

π-conjugated conjoined double helicene via a sequence of three oxidative CC- and NN-homocouplings

Shiraishi, K., Rajca, A., Pink, M. & Rajca, S., Jul 6 2005, In : Journal of the American Chemical Society. 127, 26, p. 9312-9313 2 p.

Research output: Contribution to journalArticle

Benzoyl Peroxide
Benzoyl peroxide
Diamines
Dimerization
Dehydrogenation
2006
62 Citations (Scopus)
Exchange coupling
Scaffolds
Cones
Conformations
Magnetic Resonance Spectroscopy
21 Citations (Scopus)
Spin Labels
Deoxyuridine
Nucleosides
Labels
Hydrogen
2007
26 Citations (Scopus)
Exchange coupling
X ray crystallography
X Ray Crystallography
Magnetic resonance
Scaffolds
75 Citations (Scopus)

Annelated, chiral π-conjugated systems: Tetraphenylenes and helical β-oligothiophenes

Rajca, A., Rajca, S., Pink, M. & Miyasaka, M., Jul 24 2007, In : Synlett. 12, p. 1799-1822 24 p.

Research output: Contribution to journalArticle

Dimers
Graphite
Sulfur
Carbon
Derivatives
56 Citations (Scopus)

Conformationally constrained, stable, triplet ground state (S = 1) nitroxide diradicals. Antiferromagnetic chains of S = 1 diradicals

Rajca, A., Takahashi, M., Pink, M., Spagnol, G. & Rajca, S., Aug 22 2007, In : Journal of the American Chemical Society. 129, 33, p. 10159-10170 12 p.

Research output: Contribution to journalArticle

Ground state
Magnetic Resonance Spectroscopy
Temperature
X ray crystallography
X Ray Crystallography
31 Citations (Scopus)

Efficient synthesis of tricyclic benzobisoxazines by silica gel catalysis

Spagnol, G., Rajca, A. & Rajca, S., Mar 2 2007, In : Journal of Organic Chemistry. 72, 5, p. 1867-1869 3 p.

Research output: Contribution to journalArticle

Silica Gel
Catalysis
Oxazines
Condensation reactions
Ketones
14 Citations (Scopus)

Helically annelated and cross-conjugated β-oligothiophenes: A fourier transform Raman spectroscopic and quantum chemical density functional theory study

Malavé Osuna, R., Ponce Ortiz, R., Hernández, V., López Navarrete, J. T., Miyasaka, M., Rajca, S., Rajca, A. & Glaser, R., Mar 29 2007, In : Journal of Physical Chemistry C. 111, 12, p. 4854-4860 7 p.

Research output: Contribution to journalArticle

Thiophenes
Molecular orbitals
Thiophene
thiophenes
Density functional theory