Erbium mixed-ligand β-diketiminato-diamido complex

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Erbium mixed-ligand β-diketiminato-diamido complex : Unusual structure of diamide ligand. / Klementyeva, Svetlana V.; Petrov, Pavel A.; Starikova, Alyona A. et al.

In: ChemistrySelect, Vol. 3, No. 4, 31.01.2018, p. 1262-1267.

Research output: Contribution to journal › Article › peer-review

Author

Klementyeva, Svetlana V. ; Petrov, Pavel A. ; Starikova, Alyona A. et al. / Erbium mixed-ligand β-diketiminato-diamido complex : Unusual structure of diamide ligand. In: ChemistrySelect. 2018 ; Vol. 3, No. 4. pp. 1262-1267.

BibTeX

@article{c6524d32e37b4c1f84df29647d5ceada,

title = "Erbium mixed-ligand β-diketiminato-diamido complex: Unusual structure of diamide ligand",

abstract = "A novel mixed-ligand erbium complex [(NacNac)ErL(THF)] (1) containing two types of sterically hindered ligands-monoanionic N-mesityl substituted b-diketiminate (NacNac= (MesN-C(Me)CHC(Me)-NMes)-, Mes=2,4,6-Me3C6H2) and dianionic modified diamide ligand with mesityls as the N-aryl substituents (L=(MesN-C(H)(Me)-C(=CH2)-NMes)2-)-was isolated from the salt metathesis reaction of [(NacNac)Er(THF)2] with potassium salt of doubly reduced diazabutadiene K2(DADMes2-) (DAD-Mes=MesN=C(Me)-C(Me)=NMes) prepared in situ. A solid-state structure of 1 was determined by single-crystal X-ray diffraction and revealed unusual asymmetrical diamide ligand with sp3-and sp2-hybridized carbon backbone atoms and exometallacyclic double carbon-carbon bond. In spite of the energy preference of symmetrical form of diamide ligand Lsym (Lsym=(MesN-C(Me)=C(Me)-NMes)2-) calculated by DFT asymmetrical form L was found as minor product in the mixture of dipotassium salts obtained by reduction of DAD-Mes.",

keywords = "B-Diketiminates, Density functional calculations, Diamide, Diazabutadiene, Lanthanides, 1,4-DIAZABUTADIENE LIGANDS, LANTHANIDE COMPLEXES, CRYSTAL-STRUCTURES, ALPHA-DIIMINE LIGANDS, ORGANOSCANDIUM COMPLEXES, DIALKYLSCANDIUM COMPLEXES, YTTRIUM COMPLEXES, RING-OPENING POLYMERIZATION, beta-Diketiminates, CATALYTIC-ACTIVITY, SEPARATED ION-PAIRS",

author = "Klementyeva, {Svetlana V.} and Petrov, {Pavel A.} and Starikova, {Alyona A.} and Konchenko, {Sergey N.}",

year = "2018",

month = jan,

day = "31",

doi = "10.1002/slct.201703168",

language = "English",

volume = "3",

pages = "1262--1267",

journal = "ChemistrySelect",

issn = "2365-6549",

publisher = "Wiley-Blackwell",

number = "4",

}

RIS

TY - JOUR

T1 - Erbium mixed-ligand β-diketiminato-diamido complex

T2 - Unusual structure of diamide ligand

AU - Klementyeva, Svetlana V.

AU - Petrov, Pavel A.

AU - Starikova, Alyona A.

AU - Konchenko, Sergey N.

PY - 2018/1/31

Y1 - 2018/1/31

N2 - A novel mixed-ligand erbium complex [(NacNac)ErL(THF)] (1) containing two types of sterically hindered ligands-monoanionic N-mesityl substituted b-diketiminate (NacNac= (MesN-C(Me)CHC(Me)-NMes)-, Mes=2,4,6-Me3C6H2) and dianionic modified diamide ligand with mesityls as the N-aryl substituents (L=(MesN-C(H)(Me)-C(=CH2)-NMes)2-)-was isolated from the salt metathesis reaction of [(NacNac)Er(THF)2] with potassium salt of doubly reduced diazabutadiene K2(DADMes2-) (DAD-Mes=MesN=C(Me)-C(Me)=NMes) prepared in situ. A solid-state structure of 1 was determined by single-crystal X-ray diffraction and revealed unusual asymmetrical diamide ligand with sp3-and sp2-hybridized carbon backbone atoms and exometallacyclic double carbon-carbon bond. In spite of the energy preference of symmetrical form of diamide ligand Lsym (Lsym=(MesN-C(Me)=C(Me)-NMes)2-) calculated by DFT asymmetrical form L was found as minor product in the mixture of dipotassium salts obtained by reduction of DAD-Mes.

AB - A novel mixed-ligand erbium complex [(NacNac)ErL(THF)] (1) containing two types of sterically hindered ligands-monoanionic N-mesityl substituted b-diketiminate (NacNac= (MesN-C(Me)CHC(Me)-NMes)-, Mes=2,4,6-Me3C6H2) and dianionic modified diamide ligand with mesityls as the N-aryl substituents (L=(MesN-C(H)(Me)-C(=CH2)-NMes)2-)-was isolated from the salt metathesis reaction of [(NacNac)Er(THF)2] with potassium salt of doubly reduced diazabutadiene K2(DADMes2-) (DAD-Mes=MesN=C(Me)-C(Me)=NMes) prepared in situ. A solid-state structure of 1 was determined by single-crystal X-ray diffraction and revealed unusual asymmetrical diamide ligand with sp3-and sp2-hybridized carbon backbone atoms and exometallacyclic double carbon-carbon bond. In spite of the energy preference of symmetrical form of diamide ligand Lsym (Lsym=(MesN-C(Me)=C(Me)-NMes)2-) calculated by DFT asymmetrical form L was found as minor product in the mixture of dipotassium salts obtained by reduction of DAD-Mes.

KW - B-Diketiminates

KW - Density functional calculations

KW - Diamide

KW - Diazabutadiene

KW - Lanthanides

KW - 1,4-DIAZABUTADIENE LIGANDS

KW - LANTHANIDE COMPLEXES

KW - CRYSTAL-STRUCTURES

KW - ALPHA-DIIMINE LIGANDS

KW - ORGANOSCANDIUM COMPLEXES

KW - DIALKYLSCANDIUM COMPLEXES

KW - YTTRIUM COMPLEXES

KW - RING-OPENING POLYMERIZATION

KW - beta-Diketiminates

KW - CATALYTIC-ACTIVITY

KW - SEPARATED ION-PAIRS

UR - http://www.scopus.com/inward/record.url?scp=85045741619&partnerID=8YFLogxK

U2 - 10.1002/slct.201703168

DO - 10.1002/slct.201703168

M3 - Article

AN - SCOPUS:85045741619

VL - 3

SP - 1262

EP - 1267

JO - ChemistrySelect

JF - ChemistrySelect

SN - 2365-6549

IS - 4

ER -

ID: 12799314