Synthesis, structural and IR spectral studies of lanthanide (Nd, Sm) phenyl- and 2-pyridylthiolates supported by bulky 2,6-diisopropylphenyl substituted β-diketiminate ligand

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Synthesis, structural and IR spectral studies of lanthanide (Nd, Sm) phenyl- and 2-pyridylthiolates supported by bulky 2,6-diisopropylphenyl substituted β-diketiminate ligand. / Mironova, Olga A.; Sukhikh, Taisiya S.; Konchenko, Sergey N. et al.

In: Polyhedron, Vol. 159, 01.02.2019, p. 337-344.

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

BibTeX

@article{065a20ab30bb48dfadaec1823caf274c,

title = "Synthesis, structural and IR spectral studies of lanthanide (Nd, Sm) phenyl- and 2-pyridylthiolates supported by bulky 2,6-diisopropylphenyl substituted β-diketiminate ligand",

abstract = "Lanthanide triiodides LnI3 (Ln = Nd, Sm) were synthesized by an improved method and used for the synthesis of complexes with β-diketiminate (nacnac) ligand [Ln(LDipp)I2(THF)2] (LDipp = HC(C(NDipp)Me)2 −, Dipp = 2,6-Diisopropylphenyl; Ln = Nd, 1a; Sm, 1b). These complexes were crystallized as solvates with THF or toluene, depending on the solvent, while the Nd complex 1a was also shown to reversibly lose one of coordinated THF molecules upon recrystallization from toluene at elevated temperatures. The diiodide complexes 1 were used as convenient precursors to thiolate complexes of the types [Ln(LDipp)(SPh)2(THF)] (Nd, 2a; Sm, 2b) and [Ln(LDipp)(S-2-Py)2] (Nd, 3a; Sm, 3b), obtained by salt metathesis reactions with KSPh and KS(2-Py), respectively. The phenylthiolate complexes 2 have formal coordination number (CN) of 6, where the 6th position is occupied by a Ph ring which is placed close to the Ln centre and plays a role of a ligand even in the presence of THF. The pyridilthiolates 3 have CN of 6 and contain no coordinated THF molecules. All compounds were characterized by single crystal X-ray diffraction, elemental analysis, IR spectroscopy. IR bands characteristic for all types of ligands in the complexes are discussed.",

keywords = "IR spectroscopy, Lanthanides, Mixed-ligand complexes, Thiolates, β-Diketiminates, LN, ALKYL, MAIN-GROUP, POLYMERIZATION, RARE-EARTH COMPLEXES, CLUSTERS, beta-Diketiminates, YTTERBIUM, PRECURSORS, CHALCOGENOLATE COMPLEXES, ACTINIDE METALS",

author = "Mironova, {Olga A.} and Sukhikh, {Taisiya S.} and Konchenko, {Sergey N.} and Pushkarevsky, {Nikolay A.}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier Ltd",

year = "2019",

month = feb,

day = "1",

doi = "10.1016/j.poly.2018.12.011",

language = "English",

volume = "159",

pages = "337--344",

journal = "Polyhedron",

issn = "0277-5387",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Synthesis, structural and IR spectral studies of lanthanide (Nd, Sm) phenyl- and 2-pyridylthiolates supported by bulky 2,6-diisopropylphenyl substituted β-diketiminate ligand

AU - Mironova, Olga A.

AU - Sukhikh, Taisiya S.

AU - Konchenko, Sergey N.

AU - Pushkarevsky, Nikolay A.

PY - 2019/2/1

Y1 - 2019/2/1

N2 - Lanthanide triiodides LnI3 (Ln = Nd, Sm) were synthesized by an improved method and used for the synthesis of complexes with β-diketiminate (nacnac) ligand [Ln(LDipp)I2(THF)2] (LDipp = HC(C(NDipp)Me)2 −, Dipp = 2,6-Diisopropylphenyl; Ln = Nd, 1a; Sm, 1b). These complexes were crystallized as solvates with THF or toluene, depending on the solvent, while the Nd complex 1a was also shown to reversibly lose one of coordinated THF molecules upon recrystallization from toluene at elevated temperatures. The diiodide complexes 1 were used as convenient precursors to thiolate complexes of the types [Ln(LDipp)(SPh)2(THF)] (Nd, 2a; Sm, 2b) and [Ln(LDipp)(S-2-Py)2] (Nd, 3a; Sm, 3b), obtained by salt metathesis reactions with KSPh and KS(2-Py), respectively. The phenylthiolate complexes 2 have formal coordination number (CN) of 6, where the 6th position is occupied by a Ph ring which is placed close to the Ln centre and plays a role of a ligand even in the presence of THF. The pyridilthiolates 3 have CN of 6 and contain no coordinated THF molecules. All compounds were characterized by single crystal X-ray diffraction, elemental analysis, IR spectroscopy. IR bands characteristic for all types of ligands in the complexes are discussed.

AB - Lanthanide triiodides LnI3 (Ln = Nd, Sm) were synthesized by an improved method and used for the synthesis of complexes with β-diketiminate (nacnac) ligand [Ln(LDipp)I2(THF)2] (LDipp = HC(C(NDipp)Me)2 −, Dipp = 2,6-Diisopropylphenyl; Ln = Nd, 1a; Sm, 1b). These complexes were crystallized as solvates with THF or toluene, depending on the solvent, while the Nd complex 1a was also shown to reversibly lose one of coordinated THF molecules upon recrystallization from toluene at elevated temperatures. The diiodide complexes 1 were used as convenient precursors to thiolate complexes of the types [Ln(LDipp)(SPh)2(THF)] (Nd, 2a; Sm, 2b) and [Ln(LDipp)(S-2-Py)2] (Nd, 3a; Sm, 3b), obtained by salt metathesis reactions with KSPh and KS(2-Py), respectively. The phenylthiolate complexes 2 have formal coordination number (CN) of 6, where the 6th position is occupied by a Ph ring which is placed close to the Ln centre and plays a role of a ligand even in the presence of THF. The pyridilthiolates 3 have CN of 6 and contain no coordinated THF molecules. All compounds were characterized by single crystal X-ray diffraction, elemental analysis, IR spectroscopy. IR bands characteristic for all types of ligands in the complexes are discussed.

KW - IR spectroscopy

KW - Lanthanides

KW - Mixed-ligand complexes

KW - Thiolates

KW - β-Diketiminates

KW - LN

KW - ALKYL

KW - MAIN-GROUP

KW - POLYMERIZATION

KW - RARE-EARTH COMPLEXES

KW - CLUSTERS

KW - beta-Diketiminates

KW - YTTERBIUM

KW - PRECURSORS

KW - CHALCOGENOLATE COMPLEXES

KW - ACTINIDE METALS

UR - http://www.scopus.com/inward/record.url?scp=85059071851&partnerID=8YFLogxK

U2 - 10.1016/j.poly.2018.12.011

DO - 10.1016/j.poly.2018.12.011

M3 - Article

AN - SCOPUS:85059071851

VL - 159

SP - 337

EP - 344

JO - Polyhedron

JF - Polyhedron

SN - 0277-5387

ER -

ID: 18067621