reaction mechanisms of inorganic and organometallic systems (topics in inorganic chemistry)

532 346 0
reaction mechanisms of inorganic and organometallic systems (topics in inorganic chemistry)

Đang tải... (xem toàn văn)

Tài liệu hạn chế xem trước, để xem đầy đủ mời bạn chọn Tải xuống

Thông tin tài liệu

[...]... concentrations of B, Y and Z in terms of A: Substitution of these values into Eq (1.44) gives Then, taking the difference /, - /„ and solving for [A] gives Similarly, 70 - /^ gives [A]0 as 14 Reaction Mechanisms of Inorganic and Organometallic Systems Combination of the last two equations gives Substitution for [A] into the integrated rate law gives equations that can be used to determine a k from measurements of. .. reference to integration tables Many more complex examples are given in advanced textbooks on kinetics 1.2.1 Zero-Order Reaction A zero-order reaction is rare for inorganic reactions in solution but is included for completeness For the general reaction the zero-order rate law is given by and integration over the limits [B] = [B]0 to [B] and t = 0 to t yields 4 Reaction Mechanisms of Inorganic and Organometallic. .. reagent concentrations are varied one at a time in a series of kinetic runs in order to determine the rate law 12 Reaction Mechanisms of Inorganic and Organometallic Systems Figure 1.2 The time dependence of the absorbance, /A, of reactant A during the initial stages of its reaction with B with a rate law -d[A]/df = £2[A][B] and k2 = 3.0xl(T2 NT1 s'1 Initial concentrations (M) are: [A]0 = 0.050, [B]0... and definitions Many of these may be known from previous studies in introductory and physical chemistry, and further background can be obtained from textbooks devoted to the physical chemistry aspects of reaction kinetics Rate For the general reaction the reaction rate and the rate of disappearance of reactants and rate of formation of products are related by In practice, it is not uncommon to define... the initial volumes of the series edited by Bamford and Tipper.6 Experimental techniques that are commonly used in inorganic kinetic studies are discussed in Chapter 9 1.1 BASIC TERMINOLOGY As with most fields, the study of reaction kinetics has some terminology with which one must be familiar in order to understand advanced books and research papers in the area The following is a summary of some of. .. and their volumes as a function of pressure can be described by where AB* represents the compressibility of the system Substitution of Eq (1.78) into Eq (1.76) and integration over the same limits yields More complex explanations of nonlinearity also are possible.13 22 Reaction Mechanisms of Inorganic and Organometallic Systems Figure 1.5 The pressure dependence of k for the linkage isomerization of. .. [Y] and [Z] constant and changing [X] to determine the dependence of k on [X], and then repeating the process for [Y] and [Z] In the case of H+, buffers can be used to keep its concentration constant during an experiment In many elementary considerations of kinetic data, it is suggested that the order of a reaction with respect to a particular reagent can be determined from a plot of the logarithm of. .. define the rate only in terms of the species whose concentration is being monitored The consequences that can result from different definitions of the rate in relation to the stoichiometry are described below under the definition of the rate constant 1 2 Reaction Mechanisms of Inorganic and Organometallic Systems Rate Law The rate law is the experimentally determined dependence of the reaction rate on... rates of rearrangements within intermediates and thereby affect the products of the reaction This effect has been exploited in recent years by Trofimov and co-workers14 to elucidate reaction pathways in several organic reactions, and is the basis of Tools of the Trade 23 the "cage effect" which sometimes is used in photochemistry to control the lifetime of the immediate products of photochemically induced... parallel and/ or successive reactions, as shown in the following system: 16 Reaction Mechanisms of Inorganic and Organometallic Systems If pseudo-first-order conditions are maintained, it is always possible to solve T differential equations to determine the integrated rate law.9-10 The solution has the general form where M, Af, and yp y2, are constants that depend on the rate constants for the individual . University of California, Santa Barbara Chemical Bonding in Solids, J. Burdett Reaction Mechanisms of Inorganic and Organometallic Systems, 3 rd Edition, R. Jordan Reaction Mechanisms of Inorganic . class="bi x0 y0 w0 h0" alt="" Reaction Mechanisms of Inorganic and Organometallic Systems TOPICS IN INORGANIC CHEMISTRY A Series of Advanced Textbooks in Inorganic Chemistry Series . Abbreviations, 488 Index, 491 Reaction Mechanisms of Inorganic and Organometallic Systems This page intentionally left blank 1 Tools of the Trade This chapter covers the basic terminology and theory

Ngày đăng: 01/04/2014, 10:37

Từ khóa liên quan

Tài liệu cùng người dùng

Tài liệu liên quan