2D Correlation Experiments: HSQC, HMQC, HMBC, TOCSY

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Heteronuclear Magnetization Transfer as Usedin the INEPT and HSQC Experiments1H15N1H(I)ττ15N(S)90-x 180y 90y90xIz -Iy -2IxSz 2IzSyτ = 1/4J

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Heteronuclear Magnetization Transfer as Usedin the INEPT and HSQC Experiments1H15N1H(I)ττ15N(S)90-x 180y 90y90xIz -Iy -2IxSz 2IzSyτ = 1/4J

Evolution and Detection in HSQC180x 90-x 180x90-x 180xt1/2 t1/2 τ τ decoupleSz (ωS, t1) (180 decouples I)2IzSy 2IzSy cos(ωSt1) –2IzSx sin(ωS t1)t2Ix(π/2)+Sx(π/2)-2IySz cos(ωS t1) + 2IySx cos(ωSt1) (unobserved 2Q)IzSz (J2τ) (chem shift refocuses)-Ix cos(ωSt1)Iz (ωI, t2)-Ix cos(ωSt1)cos(ωI t2) -Iy cos(ωSt1)sin(ωI t2)

Page 1 and 2: 2D Correlation Experiments:HSQC, HM
Page 3: HSQC Spectrum of H-N Amides in aPro
Page 7 and 8: Important Features of HSQC Spectra
Page 9 and 10: Spectral Display of HMQC Looks Just
Page 11 and 12: HMBC of Carbohydrates is Useful inI
Page 13 and 14: Isotropic Mixing• First order Ham
Page 15 and 16: TOCSY Transfers in IsoleucineOFrom

2D Correlation Experiments: HSQC, HMQC, HMBC, TOCSY

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