PMID- 19904432
OWN - NLM
STAT- MEDLINE
DCOM- 20100122
LR  - 20131121
IS  - 1477-9234 (Electronic)
IS  - 1477-9226 (Linking)
IP  - 45
DP  - 2009 Dec 7
TI  - Two tetranuclear Mn-complexes as biomimetic models of the oxygen evolving complex 
      in Photosystem II. A synthesis, characterisation and reactivity study.
PG  - 10044-54
LID - 10.1039/b906175d [doi]
AB  - In this work we report the preparation of two metallamacrocyclic tetranuclear 
      manganese(II) complexes, [L1(4)Mn4](ClO4)4 and [L2(4)Mn4](ClO4)4 where L1 and L2 
      are the anions of the heptadentate ligands 
      2-((2-(bis(pyridin-2-ylmethyl)amino)ethyl)(methyl)amino)acetic acid and 
      2-(benzyl(2-(bis(pyridin-2-ylmethyl)amino)ethyl)amino)acetic acid), respectively. 
      The complexes have been fully characterized by ESI-MS, elemental analysis, 
      single-crystal X-ray diffraction, magnetic susceptibility, and EPR spectroscopy. 
      Electrochemical reactions as well as reactions with different chemical redox 
      reagents have been performed and a reversible two electron oxidation per 
      manganese ion has been identified. The reaction of [L1(4)Mn4](ClO4)4 with oxone 
      or cerium(IV) results in the evolution of oxygen which makes this system 
      interesting for future studies in the search for a functional mimic of the oxygen 
      evolving complex in Photosystem II.
FAU - Berggren, Gustav
AU  - Berggren G
AD  - Dept. of Photochemistry and Molecular Science, P.O. Box 523, S-75120, Uppsala, 
      Sweden.
FAU - Thapper, Anders
AU  - Thapper A
FAU - Huang, Ping
AU  - Huang P
FAU - Kurz, Philipp
AU  - Kurz P
FAU - Eriksson, Lars
AU  - Eriksson L
FAU - Styring, Stenbjorn
AU  - Styring S
FAU - Anderlund, Magnus F
AU  - Anderlund MF
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20090629
PL  - England
TA  - Dalton Trans
JT  - Dalton transactions (Cambridge, England : 2003)
JID - 101176026
RN  - 0 (Ligands)
RN  - 0 (Organometallic Compounds)
RN  - 0 (Photosystem II Protein Complex)
RN  - 42Z2K6ZL8P (Manganese)
RN  - S88TT14065 (Oxygen)
SB  - IM
MH  - *Biomimetics
MH  - Catalysis
MH  - Crystallography, X-Ray
MH  - Electrochemistry
MH  - Ligands
MH  - Magnetics
MH  - Manganese/*chemistry
MH  - *Models, Biological
MH  - Molecular Structure
MH  - Organometallic Compounds/chemical synthesis/*chemistry
MH  - Oxygen/chemistry
MH  - Photosystem II Protein Complex/*chemistry
EDAT- 2009/11/12 06:00
MHDA- 2010/01/23 06:00
CRDT- 2009/11/12 06:00
PHST- 2009/11/12 06:00 [entrez]
PHST- 2009/11/12 06:00 [pubmed]
PHST- 2010/01/23 06:00 [medline]
AID - 10.1039/b906175d [doi]
PST - ppublish
SO  - Dalton Trans. 2009 Dec 7;(45):10044-54. doi: 10.1039/b906175d. Epub 2009 Jun 29.