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Trans‐1,2‐cyclohexanediol and trans‐2‐aminocycloxexanol are useful chiral auxiliaries. Simple chemical resolution procedures for these molecules are presented. 相似文献
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Shailajan Sunita Hande Harshada Joshi Harshvardhan Tiwari Bhavesh Menon Sasikumar 《平面色谱法杂志一现代薄层色谱法》2014,27(1):23-28
JPC – Journal of Planar Chromatography – Modern TLC - Marmelosin is one of the major phytochemical constituents of Aegle marmelos (L.) Corr. (Rutaceae). Till date, there are no methods... 相似文献
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Vadapalli Chandrasekhar Palani Sasikumar Puja Singh Ramalingam Thirumoorthi Tapas Senapati 《Journal of Chemical Sciences》2008,120(1):105-113
Organostannoxane cages and aggregates of well-defined composition and structure can be prepared by the reactions of organotin
oxides or organotin oxide-hydroxides with protic acids. The utility of this strategy for the preparation of dendrimer-like
molecules containing a stannoxane core and a functional periphery is described. 相似文献
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Vadapalli Chandrasekhar Kandasamy Gopal Loganathan Nagarajan Palani Sasikumar Pakkirisamy Thilagar 《Journal of Chemical Sciences》2006,118(6):455-462
Phosphonate ligands, [RPO3]2-, are extremely versatile in the assembly of multi-tin and multi-copper architectures. We have used organostannoxane cores
for supporting multi-ferrocene and multi-porphyrin peripheries. The copper-metalated multi-porphyrin compound is an excellent
reagent for facile cleavage of DNA, even in the absence of a co-oxidant. Reaction oft-BuPO3H2 with Cu(C104)2. 6H2O in the presence of 2-pyridylpyrazole (2-Pypz) leads to the synthesis of a decanuclear copper (II) assembly. 相似文献
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Mhaske Harshad P. Vaidya Vikas V. Menon Sasikumar N. Shailajan Sunita Gomes Noel A. 《平面色谱法杂志一现代薄层色谱法》2008,21(3):217-219
JPC – Journal of Planar Chromatography – Modern TLC - 相似文献
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Low‐k dielectrics have been developed as an interlayer insulating material in the large scale integrated circuitry devices by the copolymerization of various weight percentages (10, 20, 30, and 40 wt%) of cyanate ester tethered POSS (POSS‐OCN) and bisphenol‐A cyanate ester (BACY) to obtain BACY/POSS‐OCN nanocomposites. The reinforcement of POSS‐OCN significantly contributes to the reduction in the value of dielectric constant and dielectric loss as well, which might be due to the presence of porous structured POSS‐OCN. The 30 wt% POSS‐OCN/BACY nanocomposite possesses the lowest value of dielectric constant of 1.81 at 1 MHz. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
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Soluble polyaniline (PANI) doped with dodecylbenzene sulfonic acid (DBSA) was synthesized by chemical oxidation method and was cast on glass using homemade spray, a simple technology used for coating thin film in order to replace other costly complicated techniques. The PANI–DBSA was characterized by FTIR, XRD and UV–vis techniques. The TGA results illustrated that they are three major stages of weight loss of the PANI–DBSA sample. D.C. and A.C. study was performed by pelletizing the sample. D.C. conductivity obtained at room temperature was 3.753 × 10−3 S/cm. The A.C. conductivity and dielectric properties was analyzed in the frequency range 100–1000 kHz which indicates that the value of dielectric constant and loss tangent increases with increase in temperature and decreases with increase in frequency and in addition it supports the hopping mechanism. Current density–voltage (J–V) measurements was used to characterize ITO/PANI–DBSA/Al device. The value of various junction parameters such as ideality factor, barrier height and saturation current density was calculated. 相似文献
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Devika Sasikumar Prof. Dr. Yuta Takano Prof. Dr. Vasudevanpillai Biju 《Chemistry (Weinheim an der Bergstrasse, Germany)》2020,26(9):2060-2066
The conversion of solar energy to thermal, chemical, or electrical energy attracts great attention in chemistry and physics. There has been a considerable effort for the efficient extraction of photons throughout the entire solar spectrum. In this work light energy was efficiently harvested by using a long-lived betaine photogenerated from an acridinium-based electron donor–acceptor dyad. The photothermal energy-conversion efficiency of the dyad is significantly enhanced by simultaneous illumination with blue (420–440 nm) and yellow (>480 nm) light in comparison with the sum of the conversion efficiencies for individual illumination with blue or yellow light. The enhanced photothermal effect is due to the photogenerated betaine, which absorbs longer-wavelength light than the dyad, and thus the dyad–betaine combination is promising for efficient photothermal energy conversion. The mechanisms of betaine generation and energy conversion are discussed on the basis of steady-state and transient spectral measurements. 相似文献
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