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Due to limitations in the html standard, in the following errata, Greek letters are designated by their English spellings enclosed in quotation marks.


Page xv. Isotopically labeled ubiquitin used for acquiring NMR spectra was purchased from VLI Research. The address and phone number for VLI Research were omitted accidentally. and are given below:

VLI Research
P.O. Box 1752
Southeastern, PA 19399-1752
(610) 650-0264 (voice)
(610) 650-7549 (fax)

Chapter 1

Page 14. In Equation 1.34 the rotation matrix for a rotation about the y-axis is incorrect. The correct matrix is the transpose of the matrix given in the equation. The corrected Equation 1.34 is:

Page 17. On line 4, R2* = R2 + Rinhom

Page 22. In Figure 1.7(d), the transitions labelled 1-2 and 1-3 are reversed and the transitions labelled 3-4 and 2-4 are reversed. The transitions 1-2 and 3-4 are associated with the "omega"S Larmor frequency and the others are associated with the "omega"I Larmor frequency.

Page 43. Some questions have arisen as to how Eq. 2.83 was obtained. The fact that U is unitary provides the matrix equation U U(adjoint) = E which can be expanded to give 4 equations in eight unknowns (U11, U12, U21, U22 and their complex conjugates). Equation 2.79 can be used to derive the matrix representation of the Ix operator in the primed frame. The matrix representation of Ix operator in the unprimed frame is given by Eq. 2.68. The two matrix representations of Ix are related by Eq. 2.77. Substituting the matrix representations of Ix into this equation and expanding it gives another four equations in the eight unknowns. Inspection of these equations should convince you that

(U11+U12)(U11+U12)* = 2

(U21+U22)(U21+U22)* = 0

and the result of Eq. 2.83 should follow easily. Note that the most general result is not Eq. 2.83, but the result in Eq. 2.83 times an arbitrary phase factor; the simplest result is obtained without loss of generality by assuming the phase factor is 0.

Chapter 2

Page 84. In Equation 2.240, the term Ix should be replaced with 2IxSz.

Page 93. In Equation 2.282, the operator representing the 90 pulse should be S-y, rather than I-y.

Chapter 3

Page 137. The last line of section 3.4.1 should read:

t1(0) = 2 "delta" (Section"

Chapter 4

Page 186. In the second line following Equation 4.1], the minus sign should not appear in the complex exponential.

Page 193. The last term in Equation 4.7 contains an extra factor "pi" in the first trigonometric term. This term should be sin("pi"JIR"tau").

Pages 223-224. The dephasing of magnetization by three orthogonal gradients is stated to depend upon 1/("gamma"3 Gx Gy Gz v t3). This is the case for independent gradients and a rectangular solid geometry. The efficacy of orthogonal gradients is reduced in other sample geometries (including cylindrical). Also, non-ideal effects, such as B0 inhomogeneity and susceptibility changes at the edges of a sample, have not been considered in the treatment of gradients in the text. A detailed discussion of sample geometries and non-ideal effects can be found in P.B. Kingsley, J. Magn. Reson. Ser B 109:243-250 (1995).

Chapter 5

Page 254. The right hand side of Equation 5.30 should read 2 "rho" + "sigma"

Page 264. In the third line prior to Equation 5.62, the refernce to Equation 5.57 should be to Equation 5.56.

Page 267. In Table 5.2, the expression for c(t) for the dipolar interaction should contain a leading negative sign.

Page 281. In equation 5.103, the numerical factors should be 3/4 in the middle part and 3/160 in the right part. The denominator of the right-hand part should contain a factor rIS6, not rIS2. The result of the numerical calculation in the second line following the equation is 0.031 s-1.

Page 283. In Equation 5.109, the term J("omega"0) should be j("omega"0).

Page 289. The numerical factor in the denominator of both parts of Equation 5.116 should be 10 rather than 40.

Chapter 7

Page 418. In the last line of page 418, the scalar coupling constants in both inequalities should refer to the IK spins (not IS spins) in order to be consistent with Equations 7.10 and 7.11.

Page 441. In Figure 7.10, the modified phase cycle for part (a) is incorrect. The receiver phase cycle should be x, -x only.

Page 463. In Figure 7.21, the carbon-13 rf pulse prior to the t3 period should have phase "psi 5". The corrected figure is shown below. A postscript version of the figure is available for download.

Page 485. In Figure 4.27d, the maximum value of t1 is limited to T - 2 delta_1 because the15N 180 pulse cannot enter the delta_1 period. This limitation can be avoided by reversing the order of pulses in the constant time period in a manner analgous to Figure 4.27c:

T/2-t1/2 180(N),180(Ca) T/2 180(CO) t1/2

provided that the spectrometer pulse programmer is capable of passing the 180(CO) pulse from the delta_1 period into the remainder of the constant time period when the 1H decoupling is turned on.

Page 492. In the second last line of Equation 7.86, the variable t2 should be t1.

Page 494. In Figure 7.32, the first line of the figure caption is missing. The line reads:

"Figure 7.32 A selected F2(13Ca)-F3(1HN) slice, at an F1(15N) chemical shift of"

Page 513. In Figure 7.42, the last carbon-13 "alpha" and carbonyl pulses should be exchanged. The corrected figure is shown below. A postscript version of the figure is available for download.

Chapter 8

Pages 544. Figure 8.7a has three errors: The C-"alpha" and C-"beta" labels are reversed for both Ser and Thr, and the C-"beta" and C-"gamma" labels are reversed for Gln. The corrected figure is shown below. A postscript version of the figure is available for download.

Page 545. The chemical shift axis for Figure 8.7b is labeled incorrectly. The corrected figure is shown below. A postscript version of the figure is available for download.

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Updated 9/25/97 by Arthur G. Palmer (agp6@columbia.edu)