Control of clustering behavior in anionic cerium(iii) corrole complexes: from oligomers to monomers.
The first synthesis of anion capped cerium corrole complexes is reported. Unusual clustering of the lanthanide corrole units has been found and the degree of aggregation can be controlled by the choice of the capping ligand. A polymeric structure 1a, with the general formula [Cor-Ce(THF)-Cp-Na]n(Cor = 5,15-bis(2,4,6-trimethylphenyl)-10-(4 methoxyphenyl)-corrole, THF = tetrahydrofuran), is formed using sodium cyclopentadienide (NaCp) and a dimeric structure 2a, with the general formula [Cor-Ce-Tp]2, is formed when potassium tris(pyrazolyl)borate (KTp) is used. Encapsulation of the counter-cation leads to the isolation of the monomeric structures 1b and 2b, with the general formulas [AM(2.2.2-cryptand)][Cor-Cp-X] (AM = Na or K, X = Cp or Tp). The structural and spectroscopic properties of the complexes have been investigated.
Department of Chemistry, University of California, 530 Latimer Hall, Berkeley, CA 94720, USA. Arnold@berkeley.edu.
Keith C
KC
Armstrong
Department of Chemistry, University of California, 530 Latimer Hall, Berkeley, CA 94720, USA. Arnold@berkeley.edu.
Stephan
http://orcid.org/0000-0002-5353-0801
S
Hohloch
Department of Chemistry, University of California, 530 Latimer Hall, Berkeley, CA 94720, USA. Arnold@berkeley.edu.
Trevor D
TD
Lohrey
Sandia National Laboratories, 7011 East Avenue, Livermore, CA 94550, USA.
Ryan A
RA
Zarkesh
Department of Chemistry, University of California, 530 Latimer Hall, Berkeley, CA 94720, USA. Arnold@berkeley.edu.
John
J
Arnold
Department of Chemistry, Davidson College, P.O. Box 7120, Davidson, NC 28035, USA. mitch.anstey@davidson.edu.
Mitchell R
http://orcid.org/0000-0002-7286-7741
MR
Anstey