Journal ArticleDOI
Investigation of sodium copper-phthalocyanine-tetrasulfonate solutions by means of small-angle X-ray scattering
O Kratky,H Oelschlaeger +1 more
- Vol. 31, Iss: 4, pp 490-502
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In this paper, the size and shape of the associates of sodium Cu-phthalocyanine-tetrasulfonate have been investigated in aqueous solutions by means of small-angle X-ray scattering.Abstract:
The size and shape of the associates of sodium Cu-phthalocyanine-tetrasulfonate have been investigated in aqueous solutions by means of small-angle X-ray scattering. Concentration, salt content, and temperature were varied. The smallest associates found consist of 2 molecules, the largest of more than 20 molecules. We propose oblique piles of different height for the shape of the associates. The heat of association has been estimated from the temperature dependence of the scattering curves.read more
Citations
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Journal ArticleDOI
A Direct Comparison of the Aggregation Behavior of Phthalocyanines and 2,3-Naphthalocyanines
TL;DR: In this article, the visible spectra of octakis(3,6-dioxa-1-decylthio) naphthalocyanine 7 have been recorded in THF with different concentrations and the data have been analyzed using a nonlinear least-squares fitting procedure.
I. Characterization of Sulfonated Phthalocyanines by Mass Spectrometry. II. Characterization of SIAA, a Streptococcal Heme-Binding Protein Associated with a Heme ABC Transport System
TL;DR: The biophysical characterization of SiaA will significantly advance the understanding of structure-function relationships in HBP and suggest that the heme is six-coordinate and low-spin in both oxidation states of the protein, with methionine and histidine as axial ligands.
Journal ArticleDOI
Dimerisation and de-dimerisation of ferrous phthalocyanine in DMSO
J.G. Jones,M.V. Twigg +1 more
References
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Journal ArticleDOI
Small‐Angle Scattering of X‐Rays
Book ChapterDOI
Thermodynamic Analysis of Multicomponent Solutions
TL;DR: This chapter discusses thermodynamic analysis of multicomponent solutions, where there are several diffusible and several nondiffusible solutes, but the relative amounts of the latter are kept unchanged as their total concentration is altered at constant potential of nondIFFusible components.
Journal ArticleDOI
Polymerization of Dyestuffs in Solution. Thionine and Methylene Blue1
Journal ArticleDOI
Absolute intensity measurement of small angle x-ray scattering by means of a standard sample
O. Kratky,I. Pilz,P. J. Schmitz +2 more
TL;DR: In this paper, the change of the scattered intensity of the Lupolen platelets with temperature is investigated and a relationship between temperature and the scattered spectrum intensity is given for the temperature range between 4°C and 30°C.
Journal ArticleDOI
Reversible association processes of globular proteins. I. Insulin.
TL;DR: Evidence is presented for the presence of aggregates as high as the pentamer, and the dissociation curves may be fitted best with stepwise constants.