Perchlorate — Puncak serapan FTIR dan tugasan

Jawapan pantas

Perchlorate biasanya ditetapkan dengan mencari kelompok berulang puncak ciri dan bukan satu nombor tepat buku teks. Jadual di bawah menunjukkan di mana literatur paling kerap meletakkan kumpulan ini dalam FTIR, yang disusun mengikut bukti terkumpul.

Puncak FTIR ciri untuk Perchlorate

Logik spektrum

Tugasan kumpulan berfungsi menjadi lebih yakin apabila beberapa jalur yang dijangkakan muncul bersama. Gunakan halaman ini untuk mencari puncak yang paling disokong, kemudian sahkan bahawa sampel yang sama menunjukkan corak yang koheren dan bukannya satu hit terpencil.

Penggunaan dunia sebenar

Halaman-halaman ini berguna untuk analisis bahan yang tidak diketahui, penjelasan puncak dalam laporan, penyelesaian masalah polimer, dan mengesahkan sama ada keluarga bahan calon adalah boleh dipercayai secara kimia.

Kesilapan biasa

• Menggunakan satu halaman kumpulan berfungsi sebagai keputusan bahan lengkap tanpa memeriksa spektrum yang lain.
• Dengan menganggap jalur yang paling kuat sentiasa menjadi yang paling diagnostik.
• Melupakan bahawa pemprosesan, bahan tambahan, penuaan, dan campuran boleh mengalihkan atau melebarkan puncak yang dijangkakan.

Nasihat pengesahan

Gunakan DSC, GC-MS, atau TGA apabila beberapa keluarga bahan berkongsi jalur yang serupa atau apabila kesan campuran menyebabkan tugasan FTIR tidak pasti.

Literatur di sebalik penetapan ini

• 939 cm⁻¹ keyakinan 1.0

  “The band at 939 is undoubtedly assigned to the v band of perchlorate ions which form contact ion pairs with |”

  ATR-FTIR spectroscopic studies on aqueous LiClO4, NaClO4, and Mg(ClO4)2 solutions DOI: 10.1039/B311768E
• 610 cm⁻¹ keyakinan 1.0

  “The ClO4 bands are featured by two peaks extending from 610 to 630 cm-1, which indicates that, at most, two dissimilar sorts of ClO4 anions are present in this material.”

  Electrochemical and Ion Transport Studies of Li+ Ion-Conducting MC-Based Biopolymer Blend Electrolytes DOI: 10.3390/ijms23169152
• 730 cm⁻¹ keyakinan 1.0

  “The 4) and EC solution, considerable a lithium perchlorate (LiClO cm-1 gel exhibits predominantly ionic nature and a 0.67 of appear corresponding to the shoulders at 730 and 900 cm-1 lithium ion transference number.”

  Gunathilaka 等 - 2017 - Electrical and structural studies of a LiBOB-based DOI: 10.1007/s11581-016-1834-7
• 1101 cm⁻¹ keyakinan 1.0

  “cm-1 molecules,31,32 observed at 1040 are assigned to the AN voltammetric peaks nearly from the beginning, due to the quick cm-1 while the peak at 1101 has been reported as being due to interchange of the perchlorate anions.”

  In Situ FTIR Spectroscopy Study of the Break-In Phenomenon Observed for PPy/PVS Films in Acetonitrile DOI: 10.1021/jp054026u
• 1130 cm⁻¹ keyakinan 1.0

  “In sharp perchlorate stretching mode at 1130 depletes with more”

  Influence of water on the hydrogen evolution reaction on a gold electrode in acetonitrile solution DOI: 10.1016/j.jelechem.2016.08.018
• 1162 cm⁻¹ keyakinan 1.0

  “The band at 1162 stretching merization solution with another free of monomer without losing could be assigned to the perchlorate ions, which are exchanged the potential control.”

  Spectroelectrochemical studies of poly(N-methylaniline) formation, redox behaviour and degradation. A comparison with polyaniline DOI: 10.1016/j.electacta.2013.10.179
• 619 cm⁻¹ keyakinan 1.0

  “Peaks at 619 and 1108 associated with various Open vibrations of the perchlorate ion were persistently observed.”

  Combined thermal and FTIR analysis of porous silicon based nano-energetic films DOI: 10.1039/c6ra27028j
• 623 cm⁻¹ keyakinan 1.0

  “In these inset plots, the intensity of bands at 623 assigned to the free anion was normalized to band intensities that do not depend on the lithium perchlorate concentration.”

  Plasticizers and Salt Concentrations Effects on Polymer Gel Electrolytes Based on Poly (Methyl Methacrylate) for Electrochemical Applications DOI: 10.3390/gels8060363