TY - JOUR

T1 - Stereoselective coordination chemistry of the tetradentate chelating ligand (2R,3R )-bis(2,2′-dipyridyl-5-methoxyl)butane

AU - Prabaharan, Ravi

AU - Fletcher, Nicholas C.

PY - 2003/6/21

Y1 - 2003/6/21

N2 - The enantiomerically pure ligand L3RR (2R,3R)-bis(2,2′-dipyridyl-5-methoxyl)butane has been synthesised by linking two 2,2′-bipyridine units with (2R,3R)-butandiol. The reaction of L3RR with Zn(II) afforded a mononuclear species and the 1H NMR spectroscopy points to a C1 symmetry, expected for a distorted trigonal bipyramidal coordination environment. These observations were confirmed by MM2 calculations and electrospray mass spectrometry. The reaction of L3RR with iron(II) indicated the formation of a dinuclear species by mass spectrometry. Solution state CD spectroscopy indicates that both complexes adopt a A-configuration, implying a single stranded dinuclear iron(II) complex is present rather than the anticipated triple helical architecture.

AB - The enantiomerically pure ligand L3RR (2R,3R)-bis(2,2′-dipyridyl-5-methoxyl)butane has been synthesised by linking two 2,2′-bipyridine units with (2R,3R)-butandiol. The reaction of L3RR with Zn(II) afforded a mononuclear species and the 1H NMR spectroscopy points to a C1 symmetry, expected for a distorted trigonal bipyramidal coordination environment. These observations were confirmed by MM2 calculations and electrospray mass spectrometry. The reaction of L3RR with iron(II) indicated the formation of a dinuclear species by mass spectrometry. Solution state CD spectroscopy indicates that both complexes adopt a A-configuration, implying a single stranded dinuclear iron(II) complex is present rather than the anticipated triple helical architecture.

U2 - 10.1039/b303803c

DO - 10.1039/b303803c

M3 - Journal article

AN - SCOPUS:2942713707

VL - 2003

SP - 2558

EP - 2563

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 12

ER -