Complexes in polymers IV. FTIR microscopic characterization of thin organic polymer films containing embedded transition‐metal carbonyl complexes

Markwell, Ross D.; Butler, Ian S.; Gao, Jianmei; Shaver, Alan

doi:10.1002/aoc.590060809

Cited by 4 publications

(3 citation statements)

References 8 publications

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“…Only a few reports describing the characterization of thin polymeric films with FTIR could be found in the literature. Transmission FTIR microscopy was used to determine the distribution of various transition-metal complexes embedded in thin pressed film fragments of polystyrene, poly(methyl methacrylate) and polystyrene-polyacrylonitrile copolymer, that were placed on KBr discs [ 18 ]. FTIR microscopy has also been used to verify homogeneity in polyimide thin films that were deposited on alkali halides substrates [ 19 ].…”

Section: Discussionmentioning

confidence: 99%

Characterization of combinatorial polymer blend composition gradients by FTIR microspectroscopy

Eidelman¹,

Simon²

2004

J. Res. Natl. Inst. Stand. Technol.

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A new FTIR technique was developed for characterizing thin polymer films used in combinatorial materials science. Fourier transform infrared microspectroscopy mapping technique was used to determine the composition of polymer blend gradients. Composition gradients were made from poly(L-lactic acid) (PLLA) and poly(D,L-lactic acid) (PDLLA) in the form of thin films (6 cm × 2 cm) deposited on IR reflective substrates. Three composition gradient films were prepared and characterized. The results demonstrate the reproducibility and feasibility of a new, high-throughput approach for preparing and characterizing polymer composition gradients. The combination of composition gradient film technology and automated nondestructive FTIR microspectroscopy makes it possible to rapidly and quantitatively characterize polymer composition gradients for use in combinatorial materials science.

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Section: Discussionmentioning

confidence: 99%

Characterization of combinatorial polymer blend composition gradients by FTIR microspectroscopy

Eidelman¹,

Simon²

2004

J. Res. Natl. Inst. Stand. Technol.

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“…The piano-stool complex MnCp(CO) 3 (Cp=η 5 -C 5 H 5 ) is the most highly studied half-sandwich transition metal compound, there were so many references involve applications of cymantrene [1][2][3][4][5][6][7][8]. One emerging area to which cymantrene is contributing is the use of organometallic labels to alter the chemical or analytical properties of chemical targets.…”

Section: Introductionmentioning

confidence: 99%

“…The most common molecular labels are those which take advantage, either directly or indirectly, of the one-electron oxidation of an attached ferrocenyl group [9][10][11][12][13]. The chief attraction in using a cymantrenyl moiety, Mn(η 5 -C 5 H 4 )(CO) 3 , in place of ferrocenyl is its electron-withdrawing and IR-active carbonyl groups. Its redox chemistry, however, has been underutilized [14][15][16][17][18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Synthesize Reaction Possibility of M(CO)2CY-Ph3XR(M=Cr, Mn; X=Sn, Ge; Y=S, Se; R= N(C4H4), N(C8H6), C6H5)

Butler

2011

AMR

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The thermodynamics properties of synthesize reactions of Ph3SnR (R= N (C4H4), N(C8H6), C6H5) and CpM(CO)2CY(M=Cr, Mn; Y=S, Se), the total energy and Mulliken atomic charges of the compound products M(CO)2CY-Ph3XR(M=Cr, Mn; X=Sn, Ge; Y=S, Se; R= N(C4H4), N(C8H6), C6H5) with different substitute positions on the benzene ring were investigated using DFT method. The calculation results of total energy showed that the ligand was determinant of the favourable substituted position and the central metal of two different type ligands CpCr(CO)2CY(Y=S, Se) and CpMn(CO)2 CY(Y=S, Se) was the key factor; whether the reactants Ph3SnR( R= N(C4H4), N(C8H6)) and Ph3SnR( R= C6H5) had the pyrrole or not had effect on the character of substituted position. The Mulliken atomic charges of central metal Sn and Ge showed that the atom charge value of Sn and Ge of M(CO)2CY-Ph4X was smaller than M(CO)2CY-Ph3XN (C4H4) and M(CO)2CY-Ph3XN(C8H6) (M=Cr, Mn; X=Sn, Ge; Y=S, Se) correspondingly; electron-donating trend of Ph3GeR group was stronger than that of Ph3SnR group; the pyrrole group had some conjugation effects which made the electronic distribute more even. The calculation results of thermodynamics properties of the synthesize reactions of Ph3SnR(R=N(C4H4), N(C8H6), C6H5) and CpCr(CO)CS showed that the reaction possibility was small at the general condition; ligand CpMn(CO)2CY(Y=S, Se) was more favorable to the reaction than CpCr(CO)2CY(Y=S, Se); different substituted positions would have effect on the reaction possibility apparently. Decreasing temperature would be favorable to the possibility of the reactions, but increasing temperature might be favourable to the rate of reactions.

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Near‐infrared fourier transform Raman spectroscopic characterization of transition metal carbonyl complexes embedded in thin films of polystyrene, poly(methyl methacrylate) and polystyrene–polyacrylonitrile

Markwell

Butler

Gao

et al. 1993

J Raman Spectroscopy

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Thin films of polystyrene (PS), polystyrene-polyacrylonitrile (PS-AN) copolymer and poly(methy1 methacrylate) (PMMA) containing embedded transition metal carbonyls were characterized by near-IR Fourier transform (FT) Raman spectroscopy. Several of the films were also examined by FT-Raman microspectroscopy and the distribution of the metal carbonyls throughout the films was determined by a 2D mapping procedure similar to that described earlier for 2D IR microspectroscopy. The results indicate that the 2D FT-Raman approach is particularly useful for highly doped films when the absorbance of the v(C0) modes in the IR spectra of the metal carbonyls are too large to measure accurately. The films are more sensitive to thermal decomposition induced by near-IR laser irradiation than are the solid metal crrbonyls and the PS films are more susceptible than are the PMMA films.

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Complexes in polymers IV. FTIR microscopic characterization of thin organic polymer films containing embedded transition‐metal carbonyl complexes

Cited by 4 publications

References 8 publications

Characterization of combinatorial polymer blend composition gradients by FTIR microspectroscopy

Characterization of combinatorial polymer blend composition gradients by FTIR microspectroscopy

Investigation on the Synthesize Reaction Possibility of M(CO)<sub>2</sub>CY-Ph<sub>3</sub>XR(M=Cr, Mn; X=Sn, Ge; Y=S, Se; R= N(C<sub>4</sub>H<sub>4</sub>), N(C<sub>8</sub>H<sub>6</sub>), C<sub>6</sub>H<sub>5</sub>)

Near‐infrared fourier transform Raman spectroscopic characterization of transition metal carbonyl complexes embedded in thin films of polystyrene, poly(methyl methacrylate) and polystyrene–polyacrylonitrile

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