We reexamined the protonic locations in the phase of hydrogen molybdenum br
onze (H0.26MoO3) with the lowest hydrogen content by lineshape analysis usi
ng a computer simulation, in which we dealt with systems containing more th
an three protons. NMR spectra were simulated for various models with a vari
ety of protonic arrangements and linear combinations of the models were tes
ted for whether they could reproduce observed spectra, Spectra for the six-
proton cluster models, which were suggested for H0.33MoO3 by Adams et al, (
Acta Crystallogr. Sect, B 49, 958 (1993)), were also simulated. Then, it wa
s suggested that 3- to 5-proton clusters existed in the bronze. (C) 1998 Ac
ademic Press.