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Table B.1

Peak position and FWHM of the methyl formate OCO deformation stretching mode (768.3 cm−1 /13.02 μm) in various matrices.

Mixture Temperature λpeak FWHM


(K) (cm−1) (μm) (cm−1) (μm)
HCOOCH3 15 768.48 13.012 8.061 0.1361
HCOOCH3 : CO 768.25 13.017 3.404 0.0576
HCOOCH3 : H2CO 770.42 12.980 5.089 0.0857
HCOOCH3 : CH3OH 768.49 13.013 5.329 0.0902
HCOOCH3 : H2O 777.65 12.859 13.11(*) 0.2184(*)
HCOOCH3 : Apolar 769.94 12.988 4.941 0.0833

HCOOCH3 30 768.49 13.012 7.987 0.1349
HCOOCH3 : CO 768.49 13.012 4.479 0.0757
HCOOCH3 : H2CO 770.42 12.980 4.927 0.0829
HCOOCH3 : CH3OH 768.25 13.017 5.050 0.0855
HCOOCH3 : H2O 777.65 12.859 13.37(*) 0.2228(*)
HCOOCH3 : Apolar 769.94 12.988 4.743 0.0800

HCOOCH3 50 768.49 13.012 7.785 0.1314
HCOOCH3 : CO 768.73 13.008 7.296 0.1231
HCOOCH3 : H2CO 770.66 12.976 4.747 0.0799
HCOOCH3 : CH3OH 768.25 13.017 4.709 0.0797
HCOOCH3 : H2O 777.65 12.859 13.73(*) 0.2289(*)
HCOOCH3 : Apolar 769.94 12.988 4.523 0.0763

HCOOCH3 80 768.25 13.017 7.396 0.1249
HCOOCH3 : CO 768.25 13.017 7.025 0.1186
HCOOCH3 : H2CO 770.42 12.980 4.385 0.0739
HCOOCH3 : CH3OH 768.25 13.017 4.336 0.0734
HCOOCH3 : H2O 769.94 12.988 14.21(*) 0.2374(*)
HCOOCH3 : Apolar 769.94 12.988 4.290 0.0724

HCOOCH3 100 768.97 13.004 2.095 0.0354
775.24 12.899
HCOOCH3 : CO 768.25 13.017 6.623 0.1119
HCOOCH3 : H2CO 768.97 13.004 5.281 0.0892
HCOOCH3 : CH3OH 768.25 13.017 4.279 0.0725
HCOOCH3 : H2O 769.94 12.988 13.51(*) 0.2261(*)
HCOOCH3 : Apolar 769.69 12.992 4.484 0.0757

HCOOCH3 120 768.73 13.008 1.971 0.0333
775.00 13.008
HCOOCH3 : CO 768.45 13.017 1.710 0.0287
775.24 12.899
HCOOCH3 : H2CO 768.97 13.004 1.546 0.0262
775.24 12.899
HCOOCH3 : CH3OH 768.25 13.017 3.289 0.0558
775.24 12.899
HCOOCH3 : H2O 769.21 13.000 6.784 0.1147
HCOOCH3 : Apolar 768.49 13.013 4.505 0.0762

Notes. (*) FWHM result of two or more blended peaks.

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