Synthesis and structure of a nitrogen/sulfur-ligated zinc hydroxide complex

Plasticity in the copper–thioether bond: Manifestation in blue Cu proteins and in synthetic analogs

“…With pyrazoles, Bouwman found distances of 2.67-2.68 Å [52], whereas Berreau reported much shorter distances of 2.29-2.43 Å [53]. A very long contact of over 2.80 Å was reported by Butcher et al [54].…”

Structural, Spectroscopic, and Reactivity Properties of N2S2(thioether)‐O(amide)‐Ligated HgII Complexes: The First Examples of HgII‐Mediated Amide Cleavage

“…36-41 cm -1 shifted from that observed for the free ligands (bmppa and beppa, ν C=O Ϸ 1687 and 1688 cm -1 , respectively, neat between NaCl plates). [8,22] The acetonitrile solution infrared spectrum of 1, obtained in a new BaF 2 cell, exhibits a single ν C=O vibration at 1647 cm -1 , indicating that amide oxygen coordination is maintained in solution. Notably, collection of a CH 3 CN solution infrared spectrum of 1 in an older KBr cell yields a ν C=O vibration at 1698 cm -1 .…”

“…The chelate ligands bmppa and beppa were prepared as previously reported. [8,22] Caution! Perchlorate salts of metal complexes with organic ligands are potentially explosive.…”

Role of the Secondary Coordination Sphere in Metal-Mediated Dioxygen Activation

“…31,32 One of the first examples pertinent to dioxygen binding was reported by Kitajima who isolated two isomers of a monomeric Mn(III)-peroxo complex, that differ only by the absence or presence of an intramolecular H-bond (Figure 10A). 33 Butler has reported an intriguing [V V (η 2 -O 2 )(O)] complex with a single intramolecular H-bond (Figure 10B).…”