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Synthesis of chlorin-sensitized near infrared-emitting lanthanide complexes.

Inorganic chemistry (2012-09-18)
Johanna Laakso, Geraldine A Rosser, Csongor Szíjjártó, Andrew Beeby, K Eszter Borbas
摘要

Lanthanide (Yb(3+), Nd(3+)) complexes equipped with red-absorbing hydroporphyrin (chlorin) antennae were synthesized and characterized. The syntheses are scalable, highly modular, and enable the introduction of different chlorins functionalized with a single reactive group (COOH or NH(2)). Absorption maxima were dependent on chlorin substitution pattern (monomeso aryl or dimeso aryl) and metalation state (free base or zinc chelate). The complexes benefit from dual chlorin (610-639 nm) and lanthanide (980 or 1065 nm for Yb- or Nd-complexes, respectively) emission in the biologically relevant red and near IR region of the spectrum.

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钕, powder, −40 mesh, ≥99% trace rare earth metals basis
Sigma-Aldrich
钕, chips, 99.9% trace rare earth metals basis