H–D Exchange in some macrocyclic complexes of nickel(II) under electron impact

Palii, Sergiu P.; Indrichan, K. M.; Gérbéléu, N. V.; Arion, V. B.; Zagorevskii, D. V.; Nekrasov, Yurii S.

doi:10.1002/oms.1210250306

Cited by 6 publications

(1 citation statement)

References 3 publications

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“…The metal ion inserted into the O−O bond, then promoted a variety of dissociation processes involving radical losses. There have also been numerous studies that have described the reactions of transition metal-containing complexes, such as acetyl acetonate or cyclopentadienyl metal ion species, with polyethers. − In these reports, the observed products include adducts formed between an intact metal complex and a polyether and adducts generated by substitution of one ligand of a metal complex by a polyether.…”

Section: Introductionmentioning

confidence: 99%

Collisionally Activated Dissociation of Transition Metal Ion/Polyether Complexes in a Quadrupole Ion Trap

Alvarez

Liou

et al. 1996

J. Am. Chem. Soc.

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For a series of polyether/transition metal ion complexes, collisionally activated dissociation reactions that are mediated by the flexibility of the polyether and the number of coordination sites are reported. The metal ions are generated by a pulsed laser desorption technique, and collision-activated dissociation methods are used to characterize the structures of the resulting metal/polyether complexes. The CAD patterns for the different polyether/metal ion complexes show striking variations depending on the flexibility of the ether, its number of coordination sites, and the type of metal ion. For example, (18-crown-6 + Co+) dissociates by loss of CHCH• or C2H3O• radicals, each pathway in conjunction with multiple losses of C2H4O, and resulting in products incorporating one covalent or ionic bond between the Co+ ion and the crown ether. In contrast, (12-crown-4 + Co+) dissociates by loss of CH2CH2 or C2H4O closed shell neutrals, each pathway in conjunction with additional losses of C2H4O and resulting in products that incorporate no covalent bonds to Co+. The polyether/Ni+ complexes show dissociation behavior that is similar to that observed for the Co+ complexes, but the polyether/Cu+ complexes show uniform dissociation trends that seem to be independent of the flexibility and number of coordination sites of the ether. These differences are rationalized based on the nature of the metal ion, and both the flexibility of the crown ether and its number of coordinating sites, factors which affect the geometry during coordination of the metal ion. This idea is supported by comparative dissociation reactions of metal complexes containing acyclic polyethers (glymes) which have more flexible structures. MS/MS/MS experiments and CAD of complexes formed by model compounds offer support for the dissociation mechanisms.

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Section: Introductionmentioning

confidence: 99%

Collisionally Activated Dissociation of Transition Metal Ion/Polyether Complexes in a Quadrupole Ion Trap

Alvarez

Liou

et al. 1996

J. Am. Chem. Soc.

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Template synthesis of polyazamacrocyclic compounds

Gérbéléu

Arion

Burgess

1999

Template Synthesis of Macrocyclic Compounds

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Compounds containing nitrogen in their cyclic backbone are one of the most representative groups of macrocyclic systems, and are very often synthesised by template reactions. The ligsons participating in the construction of ligand products must have certain groups or positions in moleculeswhich are sometimes concealed, revealing themselves when coordinated and activated by the template.Building up polyazamacrocyclic systems on the appropriate matrices is carried out by the interaction of compounds containing amine or imine groups with aldehydes, ketones, organic halogen derivatives, substituted malonic esters and ligsons containing unsaturated C-C bonds. The process may also be performed by interaction of the appropriate blocks, containing both functional groups necessary for obtaining the final product. Among such template reactions the most frequent is the formation of azomethine construction bonds, then C-N and C-C and in some cases, N=N chelatogene bonds.

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Spontaneous Resolution of a Triple‐Stranded Dinickel(II) Helicate Generated via Intermolecular Transamination Reaction ofS‐Methylisothiocarbohydrazide in the Presence of Ni²⁺

et al. 2008

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H–D Exchange in some macrocyclic complexes of nickel(II) under electron impact

Cited by 6 publications

References 3 publications

Collisionally Activated Dissociation of Transition Metal Ion/Polyether Complexes in a Quadrupole Ion Trap

Collisionally Activated Dissociation of Transition Metal Ion/Polyether Complexes in a Quadrupole Ion Trap

Template synthesis of polyazamacrocyclic compounds

Spontaneous Resolution of a Triple‐Stranded Dinickel(II) Helicate Generated via Intermolecular Transamination Reaction ofS‐Methylisothiocarbohydrazide in the Presence of Ni²⁺

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H–D Exchange in some macrocyclic complexes of nickel(II) under electron impact

Cited by 6 publications

References 3 publications

Collisionally Activated Dissociation of Transition Metal Ion/Polyether Complexes in a Quadrupole Ion Trap

Collisionally Activated Dissociation of Transition Metal Ion/Polyether Complexes in a Quadrupole Ion Trap

Template synthesis of polyazamacrocyclic compounds

Spontaneous Resolution of a Triple‐Stranded Dinickel(II) Helicate Generated via Intermolecular Transamination Reaction ofS‐Methylisothiocarbohydrazide in the Presence of Ni2+

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Spontaneous Resolution of a Triple‐Stranded Dinickel(II) Helicate Generated via Intermolecular Transamination Reaction ofS‐Methylisothiocarbohydrazide in the Presence of Ni²⁺