The band gap value of the DBAP molecule was calculated as 5.60 eV‚ which indicates that the DBAP molecule has stable molecular structure and the value is comparable with the band gap energy value of the reported bio-active molecules [16]. The higher hardness and lower softness value indicates the stability of the DBAP molecule. The obtained lower chemical potential and electrophilicity index values are comparable with the potential bioactive molecules [14‚ 16]. DOS spectrum was also simulated by
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and for other industrial applications; predict the formation of the addition products of unsymmetrical alkenes and alkynes on the basis of electronic mechanism; comprehend the structure of benzene‚ explain aromaticity and understand mechanism of electrophilic substitution reactions of benzene; predict the directive influence of substituents in monosubstituted benzene ring; learn about carcinogenicity and toxicity. • • • • • • • The term ‘hydrocarbon’ is self-explanatory which means
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alkane‚heptanes doesn’t react as the as the sulphuric acid will act as electrophile. C5H10 + H2SO4 ==> C5H11.HSO4 For the aromatic hydrocarbon‚toluene doesn’t react with bromine water. This is because Br2 is electrophilic enough to attack double and triple bonds‚ but not electrophilic enough to attack the pi bond system of the benzene ring of toluene.For the reaction of between toluene and aqueous potassium manganate the reaction will change the toluene to benzanoic acid and the color of potassium
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equatorial. Draw this most stable conformation of glucose. Reactive intermediates and their properties (Chpt 5): 4. Draw the Lewis structures of methyl carbanion‚ methyl carbocation‚ methyl radical‚ and methylene carbene. Which is the most electrophilic? Which is the most nucleophilic? 5. Write a mechanism for the light-initiated reaction of cyclohexane with chlorine to give chlorocyclohexane. Draw a reaction-energy diagram for the propagation steps. You can assume that the first propagation
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(giving CO2 and H2O) | Al2 O3 and vaporisation of alkane at 500°C; Cracking of Alkanes | Al2 O3 is used as a catalyst. Heat provides energy for breakage of C-C bonds. | UV light; Initiation step of FRS of alkanes by halogens * Not required for electrophilic addition reaction btw Halogens and alkenes | Br-Br 2Br Provides the energy for homolytic fission of Br-Br bond. Visible and infra-red radiations are unable to break covalent bonds while UV light can‚ because one quantum of UV light has sufficient
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Jingling Li 2/16/2014 Purpose of the experiment: To understand the mechanisms for Fisher esterification reactions as an equilibrium process and hydrolysis is the reversal reaction of esterification. Nitrate methyl benzoate by an electrophilic aromatic substitution reaction. Summary of procedures: Add sulfuric acid to the mixture of benzoic and methanol‚ heat up the mixture to 65 oC. Transfer the mixture to the separatory funnel and add ether‚ sodium bicarbonate and saturated sodium
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system were iodinated with an iodic acid-iodine mixture [37]. Bromination at the same positions was performed via N-bromosuccinamide (NBS) [38]. 8-Palmitoyl-1‚ 3‚ 5‚ 7-tetramethyl-2‚ 6 diiodo-4-bora‚ 3a‚ 4a-diaza-s-indacene was obtained by the iodination of 8-palmitoyl-1‚ 3‚ 5‚
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* Introduction to Organic Chemistry Understand the basis of drawing organic structures Depicting 3-D structures in 2-D Most organic compounds have a three-dimensional structure. How do we represent structures on our two-dimensional page? For example‚ methane is a tetrahedral molecule: Bonds in the plane of the paper: Bonds coming towards the observer: (out of the page) Bonds going away
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tract OT 16. _______ is the term for the constellation of defects resulting from untreated neonatal hypothyroidism. cretinism 17. _______ may have synthetic hormones bind to them hormone receptors 18. _______ stimulates both I- uptake and iodination of tyrosine residues on thyroglobulin TSH 19. _______ stimulates contraction of the uterus and ejection (let-down) of milk from the breasts oxytocin
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NAME OF COURSE COURSE CODE CREDIT TOTAL STUDENT LEARNING HOURS PREREQUISITE LEARNING OUTCOME : : : : Organic Chemistry I CHM 3201 4 (3+1) 160 hours per semester : : None At the end of the course‚ students will be able to: 1. Define and explain the basic concepts in organic chemistry such as electronegativity‚ orbital hybridization‚ nomenclature‚ resonance and isomerism‚ as well as organic reactions mechanisms (C4‚ CTPS) 2. to conduct experiments that demonstrate the characteristic reactions
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