Synthesis and structural characterization of a new heterobimetallic coordination complex of barium and cobalt for use as a precursor for chemical vapor deposition

A A Tahir, K C Molloy, M Mazhar, G Kociok-Kohn, M Hamid, S Dastgir

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Abstract

Ba(dmae)(2) (dmaeH = N,N-dimethylaminoethanol, C4H11NO) reacts with Co(acac)(2)(acac = 2,4-pentanedionate) to produce the trinuclear coordination complex [Ba2CO(acac)(4)(dmae)(3)(dmaeH)] in an 85% yield. Spectroscopic and single-crystal X-ray diffraction experiments indicate that the complex possesses a structure in which two barium atoms and a cobalt atom are bridged by acac and dmae groups. The barium centers are eight and nine coordinate with BaO7N and BaO7N2 coordination spheres while the cobalt is a more regular CoO5N octahedron. This 2:1 heterobimetallic molecular complex was investigated as precursor for the deposition of thin film by AACVD. The film was characterized by SEM and XRD. TGA shows that the complex starts thermal decomposition upon heating in nitrogen atmosphere at 105 degrees C to produce barium cobalt oxide material of a Ba2CoO3 composition with an orthorhombic structure. The synthetic approach detailed here represents a unique route to the formation of a heterobimetallic barium cobalt coordination complex.
Original languageEnglish
Pages (from-to)9207-9212
Number of pages6
JournalInorganic Chemistry
Volume44
Issue number25
DOIs
Publication statusPublished - 2005

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Coordination Complexes
Barium
Cobalt
barium
Chemical vapor deposition
cobalt
vapor deposition
synthesis
barium oxides
cobalt oxides
Deanol
Atoms
thermal decomposition
atoms
routes
nitrogen
atmospheres
scanning electron microscopy
Pyrolysis
heating

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Synthesis and structural characterization of a new heterobimetallic coordination complex of barium and cobalt for use as a precursor for chemical vapor deposition. / Tahir, A A; Molloy, K C; Mazhar, M; Kociok-Kohn, G; Hamid, M; Dastgir, S.

In: Inorganic Chemistry, Vol. 44, No. 25, 2005, p. 9207-9212.

Research output: Contribution to journalArticle

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abstract = "Ba(dmae)(2) (dmaeH = N,N-dimethylaminoethanol, C4H11NO) reacts with Co(acac)(2)(acac = 2,4-pentanedionate) to produce the trinuclear coordination complex [Ba2CO(acac)(4)(dmae)(3)(dmaeH)] in an 85{\%} yield. Spectroscopic and single-crystal X-ray diffraction experiments indicate that the complex possesses a structure in which two barium atoms and a cobalt atom are bridged by acac and dmae groups. The barium centers are eight and nine coordinate with BaO7N and BaO7N2 coordination spheres while the cobalt is a more regular CoO5N octahedron. This 2:1 heterobimetallic molecular complex was investigated as precursor for the deposition of thin film by AACVD. The film was characterized by SEM and XRD. TGA shows that the complex starts thermal decomposition upon heating in nitrogen atmosphere at 105 degrees C to produce barium cobalt oxide material of a Ba2CoO3 composition with an orthorhombic structure. The synthetic approach detailed here represents a unique route to the formation of a heterobimetallic barium cobalt coordination complex.",
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T1 - Synthesis and structural characterization of a new heterobimetallic coordination complex of barium and cobalt for use as a precursor for chemical vapor deposition

AU - Tahir, A A

AU - Molloy, K C

AU - Mazhar, M

AU - Kociok-Kohn, G

AU - Hamid, M

AU - Dastgir, S

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N2 - Ba(dmae)(2) (dmaeH = N,N-dimethylaminoethanol, C4H11NO) reacts with Co(acac)(2)(acac = 2,4-pentanedionate) to produce the trinuclear coordination complex [Ba2CO(acac)(4)(dmae)(3)(dmaeH)] in an 85% yield. Spectroscopic and single-crystal X-ray diffraction experiments indicate that the complex possesses a structure in which two barium atoms and a cobalt atom are bridged by acac and dmae groups. The barium centers are eight and nine coordinate with BaO7N and BaO7N2 coordination spheres while the cobalt is a more regular CoO5N octahedron. This 2:1 heterobimetallic molecular complex was investigated as precursor for the deposition of thin film by AACVD. The film was characterized by SEM and XRD. TGA shows that the complex starts thermal decomposition upon heating in nitrogen atmosphere at 105 degrees C to produce barium cobalt oxide material of a Ba2CoO3 composition with an orthorhombic structure. The synthetic approach detailed here represents a unique route to the formation of a heterobimetallic barium cobalt coordination complex.

AB - Ba(dmae)(2) (dmaeH = N,N-dimethylaminoethanol, C4H11NO) reacts with Co(acac)(2)(acac = 2,4-pentanedionate) to produce the trinuclear coordination complex [Ba2CO(acac)(4)(dmae)(3)(dmaeH)] in an 85% yield. Spectroscopic and single-crystal X-ray diffraction experiments indicate that the complex possesses a structure in which two barium atoms and a cobalt atom are bridged by acac and dmae groups. The barium centers are eight and nine coordinate with BaO7N and BaO7N2 coordination spheres while the cobalt is a more regular CoO5N octahedron. This 2:1 heterobimetallic molecular complex was investigated as precursor for the deposition of thin film by AACVD. The film was characterized by SEM and XRD. TGA shows that the complex starts thermal decomposition upon heating in nitrogen atmosphere at 105 degrees C to produce barium cobalt oxide material of a Ba2CoO3 composition with an orthorhombic structure. The synthetic approach detailed here represents a unique route to the formation of a heterobimetallic barium cobalt coordination complex.

U2 - 10.1021/ic050564+

DO - 10.1021/ic050564+

M3 - Article

VL - 44

SP - 9207

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

SN - 0020-1669

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