Synthesis of new organotitanium (IV) complexes Cp2Ti(SeR) 2 and Cp2TiCl(SeR) via tandem reactions involving 'Cp 2Ti' intermediate. Crystal structures of Cp2TiCl(SeR) (R=p-ClC6H4, p-BrC6H4)

Li Cheng Song; Cong Han; Qing Mei Hu; Zhi Pan Zhang

doi:10.1016/j.ica.2003.06.011

Synthesis of new organotitanium (IV) complexes Cp₂Ti(SeR) ₂ and Cp₂TiCl(SeR) via tandem reactions involving 'Cp ₂Ti' intermediate. Crystal structures of Cp₂TiCl(SeR) (R=p-ClC₆H₄, p-BrC₆H₄)

Li Cheng Song^*, Cong Han, Qing Mei Hu, Zhi Pan Zhang

^*Corresponding author for this work

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

6 Citations (Scopus)

Abstract

A simple and convenient route for synthesizing organotitanium (IV) complexes with a general formula Cp₂Ti(SeR)₂ or Cp ₂TiCl(SeR) has been developed. This synthetic route includes reduction of Cp₂TiCl₂ with Mg and an in situ treatment of the intermediate 'Cp₂Ti' with diselenides RSeSeR. Interestingly, while the route involving reaction of Cp₂TiCl₂, Mg and RSeSeR in a molar ratio of 1:1:1 produced Cp₂Ti(SeR)₂, (1-5, R=α-C₁₀H₇, o-MeC₆H₄, m-MeC₆H₄, p-ClC₆H₄, p-BrC ₆H₄) in 91-97% yields, the route involving reaction of Cp₂TiCl₂, Mg and RSeSeR in a molar ratio of 1: 0.5: 0.5 afforded Cp₂TiCl(SeR) (6-7, R=p-ClC₆H₄, p-BrC₆H₄) in 70% and 92% yields, respectively. 1-7 are new and have been characterized by elemental analysis and spectroscopy, as well as by X-ray diffraction analysis for 6 and 7. A possible pathway for production of these two types of organotitanium (IV) complexes, mainly depending upon the molar ratio of the starting materials, are briefly discussed.

Original language	English
Pages (from-to)	2199-2204
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	357
Issue number	8
DOIs	https://doi.org/10.1016/j.ica.2003.06.011
Publication status	Published - 10 Jun 2004
Externally published	Yes

Keywords

Chloride ligand
CpTi-containing complexes
Crystal structures
Selenolate ligand
Synthesis

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10.1016/j.ica.2003.06.011

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@article{cd908460992f4436a09147c68fefc54c,

title = "Synthesis of new organotitanium (IV) complexes Cp2Ti(SeR) 2 and Cp2TiCl(SeR) via tandem reactions involving 'Cp 2Ti' intermediate. Crystal structures of Cp2TiCl(SeR) (R=p-ClC6H4, p-BrC6H4)",

abstract = "A simple and convenient route for synthesizing organotitanium (IV) complexes with a general formula Cp2Ti(SeR)2 or Cp 2TiCl(SeR) has been developed. This synthetic route includes reduction of Cp2TiCl2 with Mg and an in situ treatment of the intermediate 'Cp2Ti' with diselenides RSeSeR. Interestingly, while the route involving reaction of Cp2TiCl2, Mg and RSeSeR in a molar ratio of 1:1:1 produced Cp2Ti(SeR)2, (1-5, R=α-C10H7, o-MeC6H4, m-MeC6H4, p-ClC6H4, p-BrC 6H4) in 91-97% yields, the route involving reaction of Cp2TiCl2, Mg and RSeSeR in a molar ratio of 1: 0.5: 0.5 afforded Cp2TiCl(SeR) (6-7, R=p-ClC6H4, p-BrC6H4) in 70% and 92% yields, respectively. 1-7 are new and have been characterized by elemental analysis and spectroscopy, as well as by X-ray diffraction analysis for 6 and 7. A possible pathway for production of these two types of organotitanium (IV) complexes, mainly depending upon the molar ratio of the starting materials, are briefly discussed.",

keywords = "Chloride ligand, CpTi-containing complexes, Crystal structures, Selenolate ligand, Synthesis",

author = "Song, {Li Cheng} and Cong Han and Hu, {Qing Mei} and Zhang, {Zhi Pan}",

year = "2004",

month = jun,

day = "10",

doi = "10.1016/j.ica.2003.06.011",

language = "English",

volume = "357",

pages = "2199--2204",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier B.V.",

number = "8",

}

Synthesis of new organotitanium (IV) complexes Cp₂Ti(SeR) ₂ and Cp₂TiCl(SeR) via tandem reactions involving 'Cp ₂Ti' intermediate. Crystal structures of Cp₂TiCl(SeR) (R=p-ClC₆H₄, p-BrC₆H₄). / Song, Li Cheng; Han, Cong; Hu, Qing Mei et al.
In: Inorganica Chimica Acta, Vol. 357, No. 8, 10.06.2004, p. 2199-2204.

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

TY - JOUR

T1 - Synthesis of new organotitanium (IV) complexes Cp2Ti(SeR) 2 and Cp2TiCl(SeR) via tandem reactions involving 'Cp 2Ti' intermediate. Crystal structures of Cp2TiCl(SeR) (R=p-ClC6H4, p-BrC6H4)

AU - Song, Li Cheng

AU - Han, Cong

AU - Hu, Qing Mei

AU - Zhang, Zhi Pan

PY - 2004/6/10

Y1 - 2004/6/10

N2 - A simple and convenient route for synthesizing organotitanium (IV) complexes with a general formula Cp2Ti(SeR)2 or Cp 2TiCl(SeR) has been developed. This synthetic route includes reduction of Cp2TiCl2 with Mg and an in situ treatment of the intermediate 'Cp2Ti' with diselenides RSeSeR. Interestingly, while the route involving reaction of Cp2TiCl2, Mg and RSeSeR in a molar ratio of 1:1:1 produced Cp2Ti(SeR)2, (1-5, R=α-C10H7, o-MeC6H4, m-MeC6H4, p-ClC6H4, p-BrC 6H4) in 91-97% yields, the route involving reaction of Cp2TiCl2, Mg and RSeSeR in a molar ratio of 1: 0.5: 0.5 afforded Cp2TiCl(SeR) (6-7, R=p-ClC6H4, p-BrC6H4) in 70% and 92% yields, respectively. 1-7 are new and have been characterized by elemental analysis and spectroscopy, as well as by X-ray diffraction analysis for 6 and 7. A possible pathway for production of these two types of organotitanium (IV) complexes, mainly depending upon the molar ratio of the starting materials, are briefly discussed.

AB - A simple and convenient route for synthesizing organotitanium (IV) complexes with a general formula Cp2Ti(SeR)2 or Cp 2TiCl(SeR) has been developed. This synthetic route includes reduction of Cp2TiCl2 with Mg and an in situ treatment of the intermediate 'Cp2Ti' with diselenides RSeSeR. Interestingly, while the route involving reaction of Cp2TiCl2, Mg and RSeSeR in a molar ratio of 1:1:1 produced Cp2Ti(SeR)2, (1-5, R=α-C10H7, o-MeC6H4, m-MeC6H4, p-ClC6H4, p-BrC 6H4) in 91-97% yields, the route involving reaction of Cp2TiCl2, Mg and RSeSeR in a molar ratio of 1: 0.5: 0.5 afforded Cp2TiCl(SeR) (6-7, R=p-ClC6H4, p-BrC6H4) in 70% and 92% yields, respectively. 1-7 are new and have been characterized by elemental analysis and spectroscopy, as well as by X-ray diffraction analysis for 6 and 7. A possible pathway for production of these two types of organotitanium (IV) complexes, mainly depending upon the molar ratio of the starting materials, are briefly discussed.

KW - Chloride ligand

KW - CpTi-containing complexes

KW - Crystal structures

KW - Selenolate ligand

KW - Synthesis

UR - http://www.scopus.com/inward/record.url?scp=2542436745&partnerID=8YFLogxK

U2 - 10.1016/j.ica.2003.06.011

DO - 10.1016/j.ica.2003.06.011

M3 - Article

AN - SCOPUS:2542436745

SN - 0020-1693

VL - 357

SP - 2199

EP - 2204

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 8

ER -

Synthesis of new organotitanium (IV) complexes Cp₂Ti(SeR) ₂ and Cp₂TiCl(SeR) via tandem reactions involving 'Cp ₂Ti' intermediate. Crystal structures of Cp₂TiCl(SeR) (R=p-ClC₆H₄, p-BrC₆H₄)

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