(i) Unsolvated methyllithium and tert-butyllithium have similar solid-statestructures. Explain the multicentre covalent bonding in these structures. Usediagrams of orbitals where necessary and construct a molecular orbitaldiagram.(ii) tert-butyllithium is soluble in non-polar alkane solvents but methyllithium isinsoluble in non-polar alkane solvents. Explain this observation.

Diagrams:1. Methyllithium Tetramer (LiCH3)4:2. tert-Butyllithium:(i) Multicentre Covalent Bonding in…

Answered: (i) Unsolvated methyllithium and…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Compound K, L and M are three isomers with the molecular formula C5H10O.Compound K cannot be oxidized, while compound M and L can be oxidized.Oxidation of compound L with hot acidified potassium permanganate,KMnO4 solution yields 2-methylbutanoic acid. When treated with Iodoformreagent, yellow precipitation only occurs in compound K. Fehling test onlyyielded positive results for compound L and negative for compound M andK. Compound M is then reacted with hydrogen chloride, HCl produceschlorocyclopentane (i) Draw the structural formula of compounds K, L and M.
Rank by the stability of the alkene isomers. The most stable isomer is 1, while the least stable isomer is 5. (A) (B) (C) (D) (E)
(c) Answer the following questions: It is possible for a compound to be chiral even though it lacks a carbon atom with four different groups. Using two nitro groups, one isopropyl group and one carboxy group as substituents, draw the structure of an optically active biphenyl that is void of a chiral carbon. i. ii. Deduce, giving reasons, whether or not the following molecules are optically active. H3C CH3 ČH(CH3)2 Quaternary ammonium salt NH2 Compound A НОСІНС OCH3 OCH3 Br Compound B
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Aspirin, or 2-acetoxybenzoic acid, (C9H8O4) is often synthesised from salicylic acid.(i) Sketch and discuss any changes in the number of possible structural conformations ofaspirin relative to those of salicylic acid. (ii) Re-draw the structure predicted to be the lowest energy conformation of aspirin,indicating any expected stabilising and destabilising interactions. Justify your choice.
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1)Chemistry students are taking an experimental course in organic chemistry at a public university. During an experiment involving conjugated dienes, some doubts arose when discussing the results obtained so far: (a) A student obtained two products from the reaction of 1,3-cyclohexadiene with Br2. His lab partner was surprised to get only one product from the reaction of 1,3 - cyclohexadiene with HBr. Explain these distinct results. (b) One student, seeing the discussion of colleagues, commented that she obtained two distinct products when reacting 1,3,5-hexatriene with HBr, with different yields just by changing the reaction temperature. Explain the results she obtained using reaction mechanism and based on kinetic and thermodynamic control involving conjugated dienes.
can you explain what regioselective, stereoselective, and enantioselective are, and how these all relate to each other in organic chemistry?
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In each of the following cases give the name or structure if one compound which fits the information given. Explain your reason and write the equations for the reactions involved. A. R is a liquid which reacts vigorously with concentrated aqueous ammonia to form a solid which is readily dehydrated by warming with phosphorus (v) oxide

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