New Heteroleptic Cobalt Precursors for Deposition of Cobalt-Based Thin Films

Seong Ho Han; Sheby Mary George; Ga Yeon Lee; Jeong Hwan Han; Bo Keun Park; Chang Gyoun Kim; Seung Uk Son; Myoung Soo Lah; Taek Mo Chung

doi:10.1021/acsomega.7b00800

New Heteroleptic Cobalt Precursors for Deposition of Cobalt-Based Thin Films

Seong Ho Han
, Sheby Mary George
, Ga Yeon Lee
, Jeong Hwan Han
, Bo Keun Park
, Chang Gyoun Kim
, Seung Uk Son
, Myoung Soo Lah
, Taek Mo Chung

Dept. of Materials Science & Engineering

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

11 Scopus citations

Abstract

A new series of heteroleptic complexes of cobalt were synthesized using aminoalkoxide and β-diketonate ligands. The complexes, [Co(dmamp)(acac)]₂ (3), [Co(dmamp)(tfac)]₂ (4), [Co(dmamp)(hfac)]₂ (5), [Co(dmamp)(tmhd)]₂ (6), and [Co(dmamb)(tmhd)]₂ (7), were prepared by two-step substitution reactions and studied using Fourier transform infrared spectroscopy, mass spectrometry, elemental analysis, and thermogravimetric analysis (TGA). Complexes 3-7 displayed dimeric molecular structures for all of the complexes with cobalt metal centers interconnected by μ₂-O bonding by the alkoxy oxygen atom. TGA and a thermal study of the complexes displayed high volatilities and stabilities for complexes 6 and 7, with sublimation temperatures of 120 °C/0.5 Torr and 130 °C/0.5 Torr, respectively.

Original language	English
Pages (from-to)	5486-5493
Number of pages	8
Journal	ACS Omega
Volume	2
Issue number	9
DOIs	https://doi.org/10.1021/acsomega.7b00800
State	Published - 30 Sep 2017

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title = "New Heteroleptic Cobalt Precursors for Deposition of Cobalt-Based Thin Films",

abstract = "A new series of heteroleptic complexes of cobalt were synthesized using aminoalkoxide and β-diketonate ligands. The complexes, [Co(dmamp)(acac)]2 (3), [Co(dmamp)(tfac)]2 (4), [Co(dmamp)(hfac)]2 (5), [Co(dmamp)(tmhd)]2 (6), and [Co(dmamb)(tmhd)]2 (7), were prepared by two-step substitution reactions and studied using Fourier transform infrared spectroscopy, mass spectrometry, elemental analysis, and thermogravimetric analysis (TGA). Complexes 3-7 displayed dimeric molecular structures for all of the complexes with cobalt metal centers interconnected by μ2-O bonding by the alkoxy oxygen atom. TGA and a thermal study of the complexes displayed high volatilities and stabilities for complexes 6 and 7, with sublimation temperatures of 120 °C/0.5 Torr and 130 °C/0.5 Torr, respectively.",

author = "Han, \{Seong Ho\} and George, \{Sheby Mary\} and Lee, \{Ga Yeon\} and Han, \{Jeong Hwan\} and Park, \{Bo Keun\} and Kim, \{Chang Gyoun\} and Son, \{Seung Uk\} and Lah, \{Myoung Soo\} and Chung, \{Taek Mo\}",

note = "Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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day = "30",

doi = "10.1021/acsomega.7b00800",

language = "English",

volume = "2",

pages = "5486--5493",

journal = "ACS Omega",

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TY - JOUR

T1 - New Heteroleptic Cobalt Precursors for Deposition of Cobalt-Based Thin Films

AU - Han, Seong Ho

AU - George, Sheby Mary

AU - Lee, Ga Yeon

AU - Han, Jeong Hwan

AU - Park, Bo Keun

AU - Kim, Chang Gyoun

AU - Son, Seung Uk

AU - Lah, Myoung Soo

AU - Chung, Taek Mo

PY - 2017/9/30

Y1 - 2017/9/30

N2 - A new series of heteroleptic complexes of cobalt were synthesized using aminoalkoxide and β-diketonate ligands. The complexes, [Co(dmamp)(acac)]2 (3), [Co(dmamp)(tfac)]2 (4), [Co(dmamp)(hfac)]2 (5), [Co(dmamp)(tmhd)]2 (6), and [Co(dmamb)(tmhd)]2 (7), were prepared by two-step substitution reactions and studied using Fourier transform infrared spectroscopy, mass spectrometry, elemental analysis, and thermogravimetric analysis (TGA). Complexes 3-7 displayed dimeric molecular structures for all of the complexes with cobalt metal centers interconnected by μ2-O bonding by the alkoxy oxygen atom. TGA and a thermal study of the complexes displayed high volatilities and stabilities for complexes 6 and 7, with sublimation temperatures of 120 °C/0.5 Torr and 130 °C/0.5 Torr, respectively.

AB - A new series of heteroleptic complexes of cobalt were synthesized using aminoalkoxide and β-diketonate ligands. The complexes, [Co(dmamp)(acac)]2 (3), [Co(dmamp)(tfac)]2 (4), [Co(dmamp)(hfac)]2 (5), [Co(dmamp)(tmhd)]2 (6), and [Co(dmamb)(tmhd)]2 (7), were prepared by two-step substitution reactions and studied using Fourier transform infrared spectroscopy, mass spectrometry, elemental analysis, and thermogravimetric analysis (TGA). Complexes 3-7 displayed dimeric molecular structures for all of the complexes with cobalt metal centers interconnected by μ2-O bonding by the alkoxy oxygen atom. TGA and a thermal study of the complexes displayed high volatilities and stabilities for complexes 6 and 7, with sublimation temperatures of 120 °C/0.5 Torr and 130 °C/0.5 Torr, respectively.

UR - https://www.scopus.com/pages/publications/85046691317

U2 - 10.1021/acsomega.7b00800

DO - 10.1021/acsomega.7b00800

M3 - Article

AN - SCOPUS:85046691317

SN - 2470-1343

VL - 2

SP - 5486

EP - 5493

JO - ACS Omega

JF - ACS Omega

IS - 9

ER -

New Heteroleptic Cobalt Precursors for Deposition of Cobalt-Based Thin Films

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