Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. I. Chemical Shifts and Line Widths of N14 and C13 Resonances

M. Shporer; G. Ron; A. Loewenstein; G. Navon

doi:10.1021/ic50025a021

Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. I. Chemical Shifts and Line Widths of N14 and C13 Resonances

M. Shporer, G. Ron, A. Loewenstein, G. Navon

Research output: Contribution to journal › Article › peer-review

Abstract

Chemical shifts and line widths of N¹⁴ n.m.r. in aqueous solutions of various paramagnetic and diamagnetic complex cyanides are reported. The C¹³ resonance was detected in one paramagnetic complex (K₃Fe(CN)₆) and in several diamagnetic ones. Temperature and concentration dependence of the resonances for some compounds are also included. The results indicate that in both para- and diamagnetic complexes the line width is determined primarily by the quadrupolar relaxation. Line positions in the diamagnetic complexes do not vary much from complex to complex. In the paramagnetic complexes, on the other hand, considerable shifts have been detected and these are ascribed to the contact term. An exception both with respect to the N¹⁴ chemical shifts and the line width was found in K₃Cr(CN)₆.

Original language	English
Pages (from-to)	358-361
Number of pages	4
Journal	Inorganic Chemistry
Volume	4
Issue number	3
DOIs	https://doi.org/10.1021/ic50025a021
State	Published - 1 Mar 1965
Externally published	Yes

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title = "Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. I. Chemical Shifts and Line Widths of N14 and C13 Resonances",

abstract = "Chemical shifts and line widths of N14 n.m.r. in aqueous solutions of various paramagnetic and diamagnetic complex cyanides are reported. The C13 resonance was detected in one paramagnetic complex (K3Fe(CN)6) and in several diamagnetic ones. Temperature and concentration dependence of the resonances for some compounds are also included. The results indicate that in both para- and diamagnetic complexes the line width is determined primarily by the quadrupolar relaxation. Line positions in the diamagnetic complexes do not vary much from complex to complex. In the paramagnetic complexes, on the other hand, considerable shifts have been detected and these are ascribed to the contact term. An exception both with respect to the N14 chemical shifts and the line width was found in K3Cr(CN)6.",

author = "M. Shporer and G. Ron and A. Loewenstein and G. Navon",

year = "1965",

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T1 - Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. I. Chemical Shifts and Line Widths of N14 and C13 Resonances

AU - Shporer, M.

AU - Ron, G.

AU - Loewenstein, A.

AU - Navon, G.

PY - 1965/3/1

Y1 - 1965/3/1

N2 - Chemical shifts and line widths of N14 n.m.r. in aqueous solutions of various paramagnetic and diamagnetic complex cyanides are reported. The C13 resonance was detected in one paramagnetic complex (K3Fe(CN)6) and in several diamagnetic ones. Temperature and concentration dependence of the resonances for some compounds are also included. The results indicate that in both para- and diamagnetic complexes the line width is determined primarily by the quadrupolar relaxation. Line positions in the diamagnetic complexes do not vary much from complex to complex. In the paramagnetic complexes, on the other hand, considerable shifts have been detected and these are ascribed to the contact term. An exception both with respect to the N14 chemical shifts and the line width was found in K3Cr(CN)6.

AB - Chemical shifts and line widths of N14 n.m.r. in aqueous solutions of various paramagnetic and diamagnetic complex cyanides are reported. The C13 resonance was detected in one paramagnetic complex (K3Fe(CN)6) and in several diamagnetic ones. Temperature and concentration dependence of the resonances for some compounds are also included. The results indicate that in both para- and diamagnetic complexes the line width is determined primarily by the quadrupolar relaxation. Line positions in the diamagnetic complexes do not vary much from complex to complex. In the paramagnetic complexes, on the other hand, considerable shifts have been detected and these are ascribed to the contact term. An exception both with respect to the N14 chemical shifts and the line width was found in K3Cr(CN)6.

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Study of Some Cyano-Metal Complexes by Nuclear Magnetic Resonance. I. Chemical Shifts and Line Widths of N14 and C13 Resonances

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