The synthesis, chemical and physical properties of silver(I) carboxylates and their use for joining of copper

Peter Frenzel, Susann Hausner, Marcus Korb, Guntram Wagner, Heinrich Lang

Research output: Contribution to journalArticle

Abstract

The synthesis of [AgO2CCR2OC(O)OMe] (6, R = H; 7, R = Me) by treatment of HO2CCR2OC(O)OMe (4, R = H; 5, R = Me) with [AgNO3] in presence of NEt3 is reported. The reaction of 6 and 7 with 2 equiv of PPh3 gave [AgO2CCR2OC(O)OMe(PPh3)(2)] (8, R = H; 9, R = Me). The thermal behavior of 6 and 7 was studied by TG, DSC and TG-MS of which the latter evinced decarboxylation as initial decomposition step followed by Ag-C, C-C and C-O bond cleavages giving silver. For copper-to-copper joining, 6 and 7 were processed to spreadable pastes by mixing them with ethylene glycol (EG) or diethylene glycol (DEG). On contact of 7-EG with Cu sheets [Cu-2(O2CCMe2OC(O)OMe)(4).2H(2)O] (12) was formed. Therefore, only 6-EG and 6-DEG were used for pressureless joining of Cu at 250 degrees C. Thru addition of Ag mu m-particles a tensile shear strength of 19 MPa was achieved, showing a significant higher value as received with commercially Ag nanopastes. The solid state structure of 5, 8, 9 and 12 was determined by single crystal X-ray structure analysis, showing [3+1] (P2O + O) (8), distorted tetrahedral (9) or octahedral (12) coordination spheres at the metal ion. (C) 2018 Published by Elsevier B.V.

Original languageEnglish
Pages (from-to)503-513
Number of pages11
JournalInorganica Chimica Acta
Volume482
DOIs
Publication statusPublished - 21 Apr 2018
Externally publishedYes

Cite this

Frenzel, Peter ; Hausner, Susann ; Korb, Marcus ; Wagner, Guntram ; Lang, Heinrich. / The synthesis, chemical and physical properties of silver(I) carboxylates and their use for joining of copper. In: Inorganica Chimica Acta. 2018 ; Vol. 482. pp. 503-513.
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abstract = "The synthesis of [AgO2CCR2OC(O)OMe] (6, R = H; 7, R = Me) by treatment of HO2CCR2OC(O)OMe (4, R = H; 5, R = Me) with [AgNO3] in presence of NEt3 is reported. The reaction of 6 and 7 with 2 equiv of PPh3 gave [AgO2CCR2OC(O)OMe(PPh3)(2)] (8, R = H; 9, R = Me). The thermal behavior of 6 and 7 was studied by TG, DSC and TG-MS of which the latter evinced decarboxylation as initial decomposition step followed by Ag-C, C-C and C-O bond cleavages giving silver. For copper-to-copper joining, 6 and 7 were processed to spreadable pastes by mixing them with ethylene glycol (EG) or diethylene glycol (DEG). On contact of 7-EG with Cu sheets [Cu-2(O2CCMe2OC(O)OMe)(4).2H(2)O] (12) was formed. Therefore, only 6-EG and 6-DEG were used for pressureless joining of Cu at 250 degrees C. Thru addition of Ag mu m-particles a tensile shear strength of 19 MPa was achieved, showing a significant higher value as received with commercially Ag nanopastes. The solid state structure of 5, 8, 9 and 12 was determined by single crystal X-ray structure analysis, showing [3+1] (P2O + O) (8), distorted tetrahedral (9) or octahedral (12) coordination spheres at the metal ion. (C) 2018 Published by Elsevier B.V.",
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The synthesis, chemical and physical properties of silver(I) carboxylates and their use for joining of copper. / Frenzel, Peter; Hausner, Susann; Korb, Marcus; Wagner, Guntram; Lang, Heinrich.

In: Inorganica Chimica Acta, Vol. 482, 21.04.2018, p. 503-513.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The synthesis, chemical and physical properties of silver(I) carboxylates and their use for joining of copper

AU - Frenzel, Peter

AU - Hausner, Susann

AU - Korb, Marcus

AU - Wagner, Guntram

AU - Lang, Heinrich

PY - 2018/4/21

Y1 - 2018/4/21

N2 - The synthesis of [AgO2CCR2OC(O)OMe] (6, R = H; 7, R = Me) by treatment of HO2CCR2OC(O)OMe (4, R = H; 5, R = Me) with [AgNO3] in presence of NEt3 is reported. The reaction of 6 and 7 with 2 equiv of PPh3 gave [AgO2CCR2OC(O)OMe(PPh3)(2)] (8, R = H; 9, R = Me). The thermal behavior of 6 and 7 was studied by TG, DSC and TG-MS of which the latter evinced decarboxylation as initial decomposition step followed by Ag-C, C-C and C-O bond cleavages giving silver. For copper-to-copper joining, 6 and 7 were processed to spreadable pastes by mixing them with ethylene glycol (EG) or diethylene glycol (DEG). On contact of 7-EG with Cu sheets [Cu-2(O2CCMe2OC(O)OMe)(4).2H(2)O] (12) was formed. Therefore, only 6-EG and 6-DEG were used for pressureless joining of Cu at 250 degrees C. Thru addition of Ag mu m-particles a tensile shear strength of 19 MPa was achieved, showing a significant higher value as received with commercially Ag nanopastes. The solid state structure of 5, 8, 9 and 12 was determined by single crystal X-ray structure analysis, showing [3+1] (P2O + O) (8), distorted tetrahedral (9) or octahedral (12) coordination spheres at the metal ion. (C) 2018 Published by Elsevier B.V.

AB - The synthesis of [AgO2CCR2OC(O)OMe] (6, R = H; 7, R = Me) by treatment of HO2CCR2OC(O)OMe (4, R = H; 5, R = Me) with [AgNO3] in presence of NEt3 is reported. The reaction of 6 and 7 with 2 equiv of PPh3 gave [AgO2CCR2OC(O)OMe(PPh3)(2)] (8, R = H; 9, R = Me). The thermal behavior of 6 and 7 was studied by TG, DSC and TG-MS of which the latter evinced decarboxylation as initial decomposition step followed by Ag-C, C-C and C-O bond cleavages giving silver. For copper-to-copper joining, 6 and 7 were processed to spreadable pastes by mixing them with ethylene glycol (EG) or diethylene glycol (DEG). On contact of 7-EG with Cu sheets [Cu-2(O2CCMe2OC(O)OMe)(4).2H(2)O] (12) was formed. Therefore, only 6-EG and 6-DEG were used for pressureless joining of Cu at 250 degrees C. Thru addition of Ag mu m-particles a tensile shear strength of 19 MPa was achieved, showing a significant higher value as received with commercially Ag nanopastes. The solid state structure of 5, 8, 9 and 12 was determined by single crystal X-ray structure analysis, showing [3+1] (P2O + O) (8), distorted tetrahedral (9) or octahedral (12) coordination spheres at the metal ion. (C) 2018 Published by Elsevier B.V.

KW - Silver(I) carboxylate

KW - TG-(MS)/DSC

KW - Solid state structure

KW - Silver sintering

KW - Low temperature joining

KW - ETHYLENE-GLYCOL CARBOXYLATES

KW - DEPENDENT MELTING-POINT

KW - MECHANICAL-PROPERTIES

KW - CRYSTAL-STRUCTURE

KW - SHEAR-STRENGTH

KW - AG NANOPASTE

KW - NANOPARTICLES

KW - JOINTS

KW - PASTE

KW - PARTICLES

U2 - 10.1016/j.ica.2018.04.022

DO - 10.1016/j.ica.2018.04.022

M3 - Article

VL - 482

SP - 503

EP - 513

JO - Inorganica Chemica Acta

JF - Inorganica Chemica Acta

SN - 0020-1693

ER -