Thermochemical study of volatile heteroligand magnesium complexes with 2,2,6,6-tetramethylheptane-3,5-dione and aromatic diamines

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Thermochemical study of volatile heteroligand magnesium complexes with 2,2,6,6-tetramethylheptane-3,5-dione and aromatic diamines. / Zherikova, Kseniya V.; Vikulova, Evgeniia S.; Makarenko, Alexander M. et al.

In: Thermochimica Acta, Vol. 689, 178643, 07.2020.

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

BibTeX

@article{a833cd72468a4af69eaaad0db8cd87ed,

title = "Thermochemical study of volatile heteroligand magnesium complexes with 2,2,6,6-tetramethylheptane-3,5-dione and aromatic diamines",

abstract = "Two heteroligand volatile magnesium(II) β-diketonate complexes with 2,2′-bipyridine [Mg(bipy)(thd)2] and 1,10-phenanthroline [Mg(phen)(thd)2], CASRN 182566-25-2, (thd = 2,2,6,6-tetramethylheptane-3,5-dionate-anion) have been synthesized. The compounds have been purified and properly characterized to investigate further their sublimation and melting processes. Their vapor pressures have been measured by using the flow method for the first time. Based on these data, thermodynamic characteristics of enthalpy and entropy of sublimation have been calculated at the average temperature of the experimental range. Condensed phase thermal behavior up to melting has been studied by differential scanning calorimetry and the corresponding thermodynamic characteristics have been determined. Data on sublimation has been processed in order to adjust the values of enthalpy and entropy of the processes at the reference temperature of 298.15 K. Whole set of a new thermochemical data could serve as a base for definition of optimal evaporator temperature regimes in chemical vapor deposition of MgO films using [Mg(bipy)(thd)2] and [Mg(phen)(thd)2] as precursors.",

keywords = "Beta-diketonate, Diamine, Differential scanning calorimetry, Enthalpy and entropy of sublimation and melting, Precursor, Vapor pressure, Volatile magnesium, THIN-FILMS, CRYSTAL-STRUCTURES, MOCVD, VAPOR-PRESSURE, HIGHLY VOLATILE, MGO, STANDARD MOLAR ENTHALPIES, THERMAL-PROPERTIES, ATOMIC LAYER DEPOSITION, HEAT-CAPACITY",

author = "Zherikova, {Kseniya V.} and Vikulova, {Evgeniia S.} and Makarenko, {Alexander M.} and Rikhter, {Erik A.} and Zelenina, {Ludmila N.}",

year = "2020",

month = jul,

doi = "10.1016/j.tca.2020.178643",

language = "English",

volume = "689",

journal = "Thermochimica Acta",

issn = "0040-6031",

publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Thermochemical study of volatile heteroligand magnesium complexes with 2,2,6,6-tetramethylheptane-3,5-dione and aromatic diamines

AU - Zherikova, Kseniya V.

AU - Vikulova, Evgeniia S.

AU - Makarenko, Alexander M.

AU - Rikhter, Erik A.

AU - Zelenina, Ludmila N.

PY - 2020/7

Y1 - 2020/7

N2 - Two heteroligand volatile magnesium(II) β-diketonate complexes with 2,2′-bipyridine [Mg(bipy)(thd)2] and 1,10-phenanthroline [Mg(phen)(thd)2], CASRN 182566-25-2, (thd = 2,2,6,6-tetramethylheptane-3,5-dionate-anion) have been synthesized. The compounds have been purified and properly characterized to investigate further their sublimation and melting processes. Their vapor pressures have been measured by using the flow method for the first time. Based on these data, thermodynamic characteristics of enthalpy and entropy of sublimation have been calculated at the average temperature of the experimental range. Condensed phase thermal behavior up to melting has been studied by differential scanning calorimetry and the corresponding thermodynamic characteristics have been determined. Data on sublimation has been processed in order to adjust the values of enthalpy and entropy of the processes at the reference temperature of 298.15 K. Whole set of a new thermochemical data could serve as a base for definition of optimal evaporator temperature regimes in chemical vapor deposition of MgO films using [Mg(bipy)(thd)2] and [Mg(phen)(thd)2] as precursors.

AB - Two heteroligand volatile magnesium(II) β-diketonate complexes with 2,2′-bipyridine [Mg(bipy)(thd)2] and 1,10-phenanthroline [Mg(phen)(thd)2], CASRN 182566-25-2, (thd = 2,2,6,6-tetramethylheptane-3,5-dionate-anion) have been synthesized. The compounds have been purified and properly characterized to investigate further their sublimation and melting processes. Their vapor pressures have been measured by using the flow method for the first time. Based on these data, thermodynamic characteristics of enthalpy and entropy of sublimation have been calculated at the average temperature of the experimental range. Condensed phase thermal behavior up to melting has been studied by differential scanning calorimetry and the corresponding thermodynamic characteristics have been determined. Data on sublimation has been processed in order to adjust the values of enthalpy and entropy of the processes at the reference temperature of 298.15 K. Whole set of a new thermochemical data could serve as a base for definition of optimal evaporator temperature regimes in chemical vapor deposition of MgO films using [Mg(bipy)(thd)2] and [Mg(phen)(thd)2] as precursors.

KW - Beta-diketonate

KW - Diamine

KW - Differential scanning calorimetry

KW - Enthalpy and entropy of sublimation and melting

KW - Precursor

KW - Vapor pressure

KW - Volatile magnesium

KW - THIN-FILMS

KW - CRYSTAL-STRUCTURES

KW - MOCVD

KW - VAPOR-PRESSURE

KW - HIGHLY VOLATILE

KW - MGO

KW - STANDARD MOLAR ENTHALPIES

KW - THERMAL-PROPERTIES

KW - ATOMIC LAYER DEPOSITION

KW - HEAT-CAPACITY

UR - http://www.scopus.com/inward/record.url?scp=85084675304&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/08e4928c-fcd8-3a3d-831b-10a74713cc76/

U2 - 10.1016/j.tca.2020.178643

DO - 10.1016/j.tca.2020.178643

M3 - Article

AN - SCOPUS:85084675304

VL - 689

JO - Thermochimica Acta

JF - Thermochimica Acta

SN - 0040-6031

M1 - 178643

ER -

ID: 24312615