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- A BRINKMANN
- Nature
- 1947

- M Edén, A Brinkmann, H Luthman, L Eriksson, M H Levitt
- Journal of magnetic resonance
- 2000

The principles of molecular geometry determination by high-quantum heteronuclear local field spectroscopy in solid-state NMR are discussed. The extreme multiple-quantum coherences in a cluster of nuclear spins are allowed to evolve in the presence of heteronuclear through-space couplings to two spins of a different type. The multiple-quantum dephasing curve… (More)

- Andreas Brinkmann, Mattias Edén
- The Journal of chemical physics
- 2004

The average Hamiltonian theory (AHT) of several classes of symmetry-based radio-frequency pulse sequences is developed to second order, allowing quantitative analyses of a wide range of recoupling and decoupling applications in magic-angle-spinning solid state nuclear magnetic resonance. General closed analytical expressions are presented for a cross term… (More)

- L Luning, E H M van Zundert, A J F Brinkmann
- Water science and technology : a journal of the…
- 2003

To reduce the amount of MSW going to landfills a number of technologies have been developed. Two main types of anaerobic digestion processes are distinguished for MSW organic waste, which are generally referred to as "wet" (10-15% DM) and "dry" (24-40% DM) anaerobic digestion processes. The input is conditioned to the appropriate DM content by adding… (More)

- Ildefonso Marin-Montesinos, Darren H Brouwer, Giancarlo Antonioli, Wai Cheu Lai, Andreas Brinkmann, Malcolm H Levitt
- Journal of magnetic resonance
- 2005

We examine the influence of continuous-wave heteronuclear decoupling on symmetry-based double-quantum homonuclear dipolar recoupling, using experimental measurements, numerical simulations, and average Hamiltonian theory. There are two distinct regimes in which the heteronuclear interference effects are minimized. The first regime utilizes a moderate… (More)

- A P M Kentgens, J Bart, +7 authors M H W Verkuijlen
- The Journal of chemical physics
- 2008

The predominant means to detect nuclear magnetic resonance (NMR) is to monitor the voltage induced in a radiofrequency coil by the precessing magnetization. To address the sensitivity of NMR for mass-limited samples it is worthwhile to miniaturize this detector coil. Although making smaller coils seems a trivial step, the challenges in the design of… (More)

- T Karlsson, A Brinkmann, P J Verdegem, J Lugtenburg, M H Levitt
- Solid state nuclear magnetic resonance
- 1999

We determine the decay rate constants of zero-, double- and single-quantum coherence for 13C spin pairs in magic-angle-spinning solid-state NMR. The double-quantum coherence is excited by a C7 pulse sequence and converted into zero-quantum coherence by a frequency-selective pair of pi/2 pulses. The zero-quantum coherence is reconverted into observable… (More)

- Andreas Brinkmann, Arno P M Kentgens
- Journal of the American Chemical Society
- 2006

We present a proton-selective method to determine 17O-1H distances in organic, biological, and biomimetic materials by fast magic-angle-spinning solid-state NMR spectroscopy. This method allows the determination of internuclear distances between specific (17O, 1H) spin pairs selectively. It enables the estimation of medium-range 17O...1H distances across… (More)

- Andreas Brinkmann, Jörn Schmedt auf der Günne, Malcolm H Levitt
- Journal of magnetic resonance
- 2002

Solid-state magic-angle-spinning NMR pulse sequences which implement zero-quantum homonuclear dipolar recoupling are designed with the assistance of symmetry theory. The pulse sequences are compensated on a short time scale by the use of composite pulses and on a longer time scale by the use of supercycles. (13)C dipolar recoupling is demonstrated in… (More)

- Mattias Edén, Andreas Brinkmann
- Journal of magnetic resonance
- 2005

We analyze the multiple-quantum dynamics governed by a new homonuclear recoupling strategy effecting an average dipolar Hamiltonian comprising three-spin triple-quantum operators (e.g., S(p)+S(q)+S(r)+) under magic-angle spinning conditions. Analytical expressions are presented for polarization transfer processes in systems of three and four coupled… (More)