Syntheses and crystal structures of two new cationic 3,5-dimethylpyrazole derivatives containing organoiron mixed-sandwiches as substituent groups

Carolina Manzur; Lorena Millán; Mauricio Fuentealba; Alexander Trujillo; David Carrillo

doi:10.1016/j.jorganchem.2009.01.053

Syntheses and crystal structures of two new cationic 3,5-dimethylpyrazole derivatives containing organoiron mixed-sandwiches as substituent groups

Carolina Manzur, Lorena Millán, Mauricio Fuentealba, Alexander Trujillo, David Carrillo

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

3 Scopus citations

Abstract

Organometallic hydrazines formulated as [(η⁵ -Cp) Fe (η⁶ - p - MeC₆ H₄ NHNH₂)]⁺ PF₆^-,Cp = C₅ H₅ ([1]⁺ PF₆^-) and [(η⁵ - Cp^*) Fe (η⁶ - C₆ H₅ NHNH₂)]⁺ PF₆^-, Cp^* = C₅ Me₅ ([2]⁺ PF₆^-), react with 2,4-pentanedione in acetonitrile to afford 3,5-dimethylpyrazole derivatives [3]⁺ PF₆^- and [4]⁺ PF₆^-, respectively, that contain the organoiron mixed-sandwich moieties. The new complexes have been fully characterized by elemental analysis and IR, UV-vis and ¹H and ¹³C NMR spectroscopies and authenticated by single crystal X-ray diffraction analysis. Complexes [3]⁺ PF₆^- (C₁₇ H₁₉ F₆ FeN₂ P) and [4]⁺ PF₆^- (C₂₁ H₂₇ F₆ FeN₂ P) crystallize in the space group P2₁/n.

Original language	English
Pages (from-to)	2043-2046
Number of pages	4
Journal	Journal of Organometallic Chemistry
Volume	694
Issue number	13
DOIs	https://doi.org/10.1016/j.jorganchem.2009.01.053
State	Published - 1 Jun 2009
Externally published	Yes

Keywords

2,4-Pentanedione
Mixed-sandwiches
Organometallic pyrazoles
Pyrazole derivatives
X-ray structures

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10.1016/j.jorganchem.2009.01.053

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@article{7805aa15894544099c7e0849420cc0c9,

title = "Syntheses and crystal structures of two new cationic 3,5-dimethylpyrazole derivatives containing organoiron mixed-sandwiches as substituent groups",

abstract = "Organometallic hydrazines formulated as [(η5 -Cp) Fe (η6 - p - MeC6 H4 NHNH2)]+ PF6-,Cp = C5 H5 ([1]+ PF6-) and [(η5 - Cp*) Fe (η6 - C6 H5 NHNH2)]+ PF6-, Cp* = C5 Me5 ([2]+ PF6-), react with 2,4-pentanedione in acetonitrile to afford 3,5-dimethylpyrazole derivatives [3]+ PF6- and [4]+ PF6-, respectively, that contain the organoiron mixed-sandwich moieties. The new complexes have been fully characterized by elemental analysis and IR, UV-vis and 1H and 13C NMR spectroscopies and authenticated by single crystal X-ray diffraction analysis. Complexes [3]+ PF6- (C17 H19 F6 FeN2 P) and [4]+ PF6- (C21 H27 F6 FeN2 P) crystallize in the space group P21/n.",

keywords = "2,4-Pentanedione, Mixed-sandwiches, Organometallic pyrazoles, Pyrazole derivatives, X-ray structures",

author = "Carolina Manzur and Lorena Mill{\'a}n and Mauricio Fuentealba and Alexander Trujillo and David Carrillo",

note = "Funding Information: The authors (D. C. and C. M) thank the Fondo Nacional de Desarrollo Cient{\'i}fico y Tecnol{\'o}gico, FONDECYT, Chile, Grant No. 1060490 and the Pontificia Universidad Cat{\'o}lica de Valpara{\'i}so, the financial support of this work.",

year = "2009",

month = jun,

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doi = "10.1016/j.jorganchem.2009.01.053",

language = "English",

volume = "694",

pages = "2043--2046",

journal = "Journal of Organometallic Chemistry",

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TY - JOUR

T1 - Syntheses and crystal structures of two new cationic 3,5-dimethylpyrazole derivatives containing organoiron mixed-sandwiches as substituent groups

AU - Manzur, Carolina

AU - Millán, Lorena

AU - Fuentealba, Mauricio

AU - Trujillo, Alexander

AU - Carrillo, David

N1 - Funding Information: The authors (D. C. and C. M) thank the Fondo Nacional de Desarrollo Científico y Tecnológico, FONDECYT, Chile, Grant No. 1060490 and the Pontificia Universidad Católica de Valparaíso, the financial support of this work.

PY - 2009/6/1

Y1 - 2009/6/1

N2 - Organometallic hydrazines formulated as [(η5 -Cp) Fe (η6 - p - MeC6 H4 NHNH2)]+ PF6-,Cp = C5 H5 ([1]+ PF6-) and [(η5 - Cp*) Fe (η6 - C6 H5 NHNH2)]+ PF6-, Cp* = C5 Me5 ([2]+ PF6-), react with 2,4-pentanedione in acetonitrile to afford 3,5-dimethylpyrazole derivatives [3]+ PF6- and [4]+ PF6-, respectively, that contain the organoiron mixed-sandwich moieties. The new complexes have been fully characterized by elemental analysis and IR, UV-vis and 1H and 13C NMR spectroscopies and authenticated by single crystal X-ray diffraction analysis. Complexes [3]+ PF6- (C17 H19 F6 FeN2 P) and [4]+ PF6- (C21 H27 F6 FeN2 P) crystallize in the space group P21/n.

AB - Organometallic hydrazines formulated as [(η5 -Cp) Fe (η6 - p - MeC6 H4 NHNH2)]+ PF6-,Cp = C5 H5 ([1]+ PF6-) and [(η5 - Cp*) Fe (η6 - C6 H5 NHNH2)]+ PF6-, Cp* = C5 Me5 ([2]+ PF6-), react with 2,4-pentanedione in acetonitrile to afford 3,5-dimethylpyrazole derivatives [3]+ PF6- and [4]+ PF6-, respectively, that contain the organoiron mixed-sandwich moieties. The new complexes have been fully characterized by elemental analysis and IR, UV-vis and 1H and 13C NMR spectroscopies and authenticated by single crystal X-ray diffraction analysis. Complexes [3]+ PF6- (C17 H19 F6 FeN2 P) and [4]+ PF6- (C21 H27 F6 FeN2 P) crystallize in the space group P21/n.

KW - 2,4-Pentanedione

KW - Mixed-sandwiches

KW - Organometallic pyrazoles

KW - Pyrazole derivatives

KW - X-ray structures

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U2 - 10.1016/j.jorganchem.2009.01.053

DO - 10.1016/j.jorganchem.2009.01.053

M3 - Article

AN - SCOPUS:65449116823

SN - 0022-328X

VL - 694

SP - 2043

EP - 2046

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 13

ER -

Syntheses and crystal structures of two new cationic 3,5-dimethylpyrazole derivatives containing organoiron mixed-sandwiches as substituent groups

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