Porphyrin and chlorin distributions in a Late Pliocene lacustrine sediment

Details Porphyrin and chlorin distributions in a Late Pliocene lacustrine sediment Porphyrin and chlorin distributions in a Late Pliocene lacustrine sediment

Sep 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994gecoa..58.3691k&link_type=abstract

Geochimica et Cosmochimica Acta, vol. 58, Issue 17, pp.3691-3701

Mathematics

Logic

5

Scientific paper

The tetrapyrroles in a highly immature Late Pliocene lacustrine sediment (Willershausen, Germany) show a simple distribution of both chlorin and porphyrin components as the free bases. The major components are C 32 desoxophylloerythroaetioporphyrin (DPEP), a C 33 bicycloalkano porphyrin, the chlorin analogue of the latter, and desoxophylloerythrin and its chlorin counterpart. The structure of the novel bicycloalkano chlorin was determined using a combination of two-dimensional phase-sensitive COSY NMR and nOe studies. Measurements of 13 C and other data indicate that DPEP and the bicycloalkano porphyrin were derived from the chlorophyll(s) of photosynthetic organisms utilising a common source of CO 2 , probably diatoms. The occurrence of DPEP and other minor alkyl porphyrins indicates that the chlorophyll defunctionalisation pathway leading to these components can occur at low temperature and was probably biologically mediated, as was the condensation reaction leading to the fused ring components.

Affiliated with

Also associated with

No associations

Rating

Porphyrin and chlorin distributions in a Late Pliocene lacustrine sediment does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Porphyrin and chlorin distributions in a Late Pliocene lacustrine sediment, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Porphyrin and chlorin distributions in a Late Pliocene lacustrine sediment will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1789411