Synthetic, cyclic voltammetric, structural, EPR, and UV-Vis spectroscopic studies of thienyl-containing meso-A(2)B-cor(Cr(V)=O) systems: consideration of three interrelated molecular detection modalities.
We report eight new A(2)B-type (M(n+)) corrolate compounds (two structural studies) that include the oxo[5,15-bis(pentafluorophenyl)-10-R-corrolatochromium(V)] [R = 2-/3-thienyl (1a/2a), 3-thianaphthyl (3a)] species. The first examples of meso-A(2) (thienyl)- and Cr-A(2)B-corrole types are represented herein. Characterization includes cyclic voltammetry, electron paramagnetic resonance, 2D ((1)H and (13)C) NMR, and UV-vis spectroscopy, mass spectrometry, and elemental analysis. Compounds 1a-3a have enabled analyte binding capacity studies. [Cu(2+)...O=Cr(cor)] binding represents a new selective mode of corrole-based detection, whereas free-base A(2)B-corroles exhibited limited M(n+) selectivity. The 10-position substitution affects optical profiles in analyte titrations. A limited amount of PPh(3) O-atom uptake from [O=Cr(cor)] was also demonstrated.
Egorova
Olga A
OA
Molecular Logic Gate Laboratory, KoreaAdvanced Institute of Science and Technology (KAIST), 373-1 Guseong-dong, Yuseong-gu,Daejeon 305-701, Republic of Korea.
Tsay
Olga G
OG
Khatua
Snehadrinarayan
S
Meka
Bhupal
B
Maiti
Nilkamal
N
Kim
Min-Kyu
MK
Kwon
Seong Jung
SJ
Huh
Jung Oh
JO
Bucella
Daniela
D
Kang
Sa-Ouk
SO
Kwak
Juhyoun
J
Churchill
David G
DG
D002384:Catalysis; D017608:Chromium Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004563:Electrochemistry; D004578:Electron Spin Resonance Spectroscopy; D008670:Metals / Q000737:chemistry; D008958:Models, Molecular; D015394:Molecular Structure; D011166:Porphyrins / Q000138:chemical synthesis / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet
D017608:Chromium Compounds; D008670:Metals; D011166:Porphyrins; C431863:corrole