Substituent Effects on Redox Properties and Photoinduced Electron Transfer in Isoxazolo-Fullerenes

Irngartinger, Hermann; Fettel, Peter Walter; Escher, Thomas; Tinnefeld, Philip; Nord, S.; Sauer, Markus

doi:10.1002/(sici)1099-0690(200002)2000:3<455::aid-ejoc455>3.0.co;2-n

Cited by 36 publications

(19 citation statements)

References 38 publications

(18 reference statements)

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“…Benzonitrile, a mono-substituted benzene is an aprotic polar molecule with a dipole moment of 4.18D and for this reason it has been extensively used in chemistry as a solvent [1][2][3][4][5]. It also has many other important uses [6][7].…”

Section: Introductionsupporting

confidence: 74%

Vibrational spectra, normal coordinate analysis and thermodynamics of 2, 5-difluorobenzonitrile

et al. 2010

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The FTIR spectrum of 2, 5-difluorobenzonitrile has been recorded in the region 200-4000 cm -1 (in liquid phase). The laser Raman spectrum in the range of 0-3500 cm -1 (in liquid phase) has also been recorded. The spectra have been analyzed assuming C s point group symmetry for the molecule. A zero-order normal coordinate analysis has been made for the molecule using force constants derived earlier. On the basis of potential energy distributions and eigen vectors unambiguous vibrational assignments have been made for all the fundamentals of the molecule. Thermodynamic functions have also been computed in the temperature range 200-1000 K by utilizing the observed fundamental frequencies assuming rigid-rotor harmonic oscillator approximation.

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Section: Introductionsupporting

confidence: 74%

Vibrational spectra, normal coordinate analysis and thermodynamics of 2, 5-difluorobenzonitrile

et al. 2010

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“…To date, the dipolar cycloaddition of nitrile oxides on carbon nanostructures has been performed only on [60]fullerene and CNTs . This reaction, indeed, has been widely employed to prepare fulleroisoxazolines since the beginnings of fullerene chemistry due to the great potential of this approach to afford 1,2‐heterobifunctionalized fullerene derivatives.…”

Section: Introductionmentioning

confidence: 99%

Cycloaddition of Nitrile Oxides to Graphene: a Theoretical and Experimental Approach

Uceta

Vizuete

Carrillo

et al. 2019

Chemistry A European J

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Density functional theory (DFT) studies of the interaction between graphene sheets and nitrile oxides have proved the feasibility of the reaction through 1,3‐dipolar cycloaddition. The viability of the approach has been also confirmed experimentally through the cycloaddition of few‐layer exfoliated graphene and nitrile oxides containing functional organic groups with different electronic nature. The cycloaddition reaction has been successfully achieved in one‐pot from the corresponding oximes under microwave (MW) irradiation. The successful formation of the isoxazoline ring has been confirmed by Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA) and X‐ray photoelectron spectroscopy (XPS).

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“…It is proved that the metallic d electrons are transferred to fullerene cages, resulting in richer electron density inside the carbon cage. Although C 60 may act as an electron acceptor in the fullerene derivatives,[45–48] we find for the first time that the metal donates its d electrons to two fullerene cages resulting into a more extended conjugate molecule Pt(C 60 ) 2 . The deformation charge density maps of C 2 (C 60 ) 2 and Pt(C 60 ) 2 have also been examined and shown in Figure 5.…”

Section: Resultsmentioning

confidence: 98%

Takotsubo cardiomyopathy and microvascular dysfunction: Another diagnostic criteria or predisposing factor?

Leesar

2010

Cathet Cardio Intervent

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Objective To investigate potential associations of the PlA1/A2 polymorphism of the platelet glycoprotein IIIa (GPIIIa) gene with susceptibility to, and clinical expression of, giant cell arteritis (GCA). Methods One hundred forty patients with biopsy‐proven GCA who were residents of Reggio Emilia, Italy, and 241 population‐based healthy controls from the same geographic area were genotyped for the PlA1/A2 polymorphism of the platelet GPIIIa gene by molecular methods. The patients were divided into subgroups according to the presence or absence of polymyalgia rheumatica and cranial ischemic complications. The distribution of the PlA1/A2 genotype was investigated, and odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated. Results The distribution of the PlA1/A2 genotype differed significantly between GCA patients with and those without visual loss caused by anterior ischemic optic neuritis (P = 0.016, corrected P [Pcorr] = 0.048). The PlA2 allele was found significantly more frequently in GCA patients with anterior ischemic optic neuritis than in those without anterior ischemic optic neuritis (P = 0.023, Pcorr = 0.046, OR 2.4 [95% CI 1.2–4.8]). Homozygosity for the PlA2 allele was significantly more frequent among GCA patients with anterior ischemic optic neuritis than among those without (P = 0.019, Pcorr = 0.038, OR 7.1 [95% CI 1.64–30.6]). Cranial ischemic complications occurred in 8 of 19 patients (42.1%) receiving antiplatelet therapy, compared with 22 of 118 patients (18.6%) not receiving such therapy (P = 0.03, OR 3.2 [95% CI 1.1–8.8]). Conclusion Our findings show that A2/A2 homozygosity is associated with an increased risk of visual loss due to anterior ischemic optic neuritis in GCA patients. Antiplatelet therapy, however, was not effective in reducing the risk of ischemic events in this population of GCA patients.

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Substituent Effects on Redox Properties and Photoinduced Electron Transfer in Isoxazolo-Fullerenes

Cited by 36 publications

References 38 publications

Vibrational spectra, normal coordinate analysis and thermodynamics of 2, 5-difluorobenzonitrile

Vibrational spectra, normal coordinate analysis and thermodynamics of 2, 5-difluorobenzonitrile

Cycloaddition of Nitrile Oxides to Graphene: a Theoretical and Experimental Approach

Takotsubo cardiomyopathy and microvascular dysfunction: Another diagnostic criteria or predisposing factor?

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