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- W2774710032 abstract "The synthesis, chemical and physical properties of [{AgO 2 CCH 2 OMe} n ] ( 1 ) and [{AgO 2 CCH 2 OMe(PPh 3 )} n ] ( 2 ) are reported. Consecutive reaction of AgNO 3 with HO 2 CCH 2 OMe gave 1 , which upon treatment with PPh 3 produced 2 . Coordination compound 2 forms a 1D coordination polymer in the solid state as evidenced by single crystal X-ray structure analysis. The coordination geometry at Ag + is of the [3 + 1] type, whereby the carboxylate anions act as bridging ligands. The formation of PPh 3 –Ag(I) coordinative bonds results in distorted T-shaped AgPO 2 units, which are stabilized further by an additional O–Ag dative bond. TG and TG–MS measurements show that 1 and 2 decompose at 190–250 °C ( 1 ) and 260–300 °C ( 2 ) via decarboxylation, involving Ag–P ( 2 ), C–C and C–O bond cleavages to give elemental silver as confirmed by PXRD studies. In order to verify if polymeric 2 is suitable as a FEBID precursor for silver deposition, its vapor pressure was determined ( p 170 °C = 5.318 mbar, ∆H vap = 126.1 kJ mol −1 ), evincing little volatility. Also EI and ESI mass spectrometric studies were carried out. The dissociation of the silver(I) compound 2 under typical electron-driven FEBID conditions was studied by DFT (B3LYP) calculations on monomeric [AgO 2 CCH 2 OMe(PPh 3 )]. At an energy of the secondary electrons up to 0.8 eV elimination of PPh 3 occurs, giving Ag + and O 2 CCH 2 OMe − . Likewise, by release of PPh 3 from [AgO 2 CCH 2 OMe(PPh 3 )] the fragment [AgO 2 CCH 2 OMe] − is formed from which Ag + and O 2 CCH 2 OMe − is generated, further following the first fragmentation route. However, at 1.3 eV the initial step is decarboxylation giving [AgCH 2 OMe(PPh 3 )], followed by Ag–P and Ag–C bond cleavages." @default.
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- W2774710032 date "2017-12-06" @default.
- W2774710032 modified "2023-10-15" @default.
- W2774710032 title "Synthesis of [{AgO<sub>2</sub>CCH<sub>2</sub>OMe(PPh<sub>3</sub>)}<i><sub>n</sub></i>] and theoretical study of its use in focused electron beam induced deposition" @default.
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- W2774710032 doi "https://doi.org/10.3762/bjnano.8.262" @default.
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