Borate — FTIR-absorptions-toppe og tildelinger

Hurtigt svar

Borate tildeles normalt ved at lede efter en tilbagevendende klynge af karakteristiske toppe frem for et præcist lærebogsnummer. Tabellen nedenfor viser, hvor litteraturen oftest placerer denne gruppe i FTIR, rangeret efter akkumuleret evidens.

Karakteristiske FTIR-toppe for Borate

Viser de 30 bedst understøttede toppe ud af 139 i alt for Borate.

Spektrumlogik

En funktionel gruppetildeling bliver mere sikker, når flere forventede bånd optræder sammen. Brug denne side til at finde de bedst understøttede peaks, og bekræft derefter, at den samme prøve udviser et sammenhængende mønster snarere end et enkelt isoleret hit.

Anvendelse i virkeligheden

Disse sider er nyttige til analyse af ukendte materialer, topforklaring i rapporter, polymerfejlfinding og verifikation af, om en kandidatmaterialefamilie er kemisk plausibel.

Almindelige fejl

• Brug af én funktionel-gruppe-side som en komplet materialebedømmelse uden at kontrollere resten af spektret.
• Antager, at det stærkeste bånd altid er det mest diagnostiske.
• At glemme, at forarbejdning, tilsætningsstoffer, ældning og blandinger kan flytte eller udvide forventede toppe.

Verifikationsrådgivning

Brug DSC, GC-MS eller TGA, når flere materialefamilier deler lignende bånd, eller når blandings-effekter gør FTIR-tildelingen usikker.

Litteratur bag disse tildelinger

• 1391 cm⁻¹ tillid 1,0

  “acid.8 al.,51 to the bond in the As suggested by Liu et the (cid:3)1 B-O band at 1391 cm can be correlated with linkage in cm(cid:3)1 borate.”

  Reticulated three-dimensional network ablative composites for heat shields in thermal protection systems DOI: 10.1039/c4ra05811a
• 1736 cm⁻¹ tillid 1,0

  “Additionally, changes B-O in the peak profile of the stretching band were observed upon binding, confirming formation of a (cid:24)1736 cm-1 through the IR marker mode at to 1742 depending on the identity of the bound sugar.”

  Brewer 等 - 2004 - Infrared detection of a phenylboronic acid termina DOI: 10.1021/la035037m
• 3290 cm⁻¹ tillid 1,0

  “All samples exhibited a wide band centered around inuencing 3290cm-1, whichisassociatedwithO-Hstretching.Peakswere understanding additional factors the erythro/ b-O-4 cm-1, C-H thero ratio of the linkages, which has been shown to also obse”

  Bryant 等 - 2023 - Variable lignin structure revealed in Populus leav DOI: 10.1039/d3ra03142j
• 850 cm⁻¹ tillid 1,0

  “LLM confirmed rule peak-group candidate”

  Dalui 等 - 2008 - Boron phosphide films prepared by co-evaporation t DOI: 10.1016/j.tsf.2007.09.047
• 649 cm⁻¹ tillid 1,0

  “2017).Inalgal cellsbeforebiosorption cm-1 SEM images have clearly shown that Oocystis solitaria samof lithium, the characteristic absorption peak at 649 B-O ples beforeand after lithium biosorption showed different surwhich is assigned to b”

  Phycoremediation of lithium ions from aqueous solutions using free and immobilized freshwater green alga Oocystis solitaria: mathematical modeling for bioprocess optimization DOI: 10.1007/s11356-019-05214-x
• 1100 cm⁻¹ tillid 1,0

  “This peak is around 1100 due to feasible way of functionalizing hBN [8-10], and preN-B-O vibrations [17-20].”

  Garro Mena 和 Hohn - 2021 - Modification of hexagonal boron nitride by thermal DOI: 10.1007/s10853-020-05719-8
• 985 cm⁻¹ tillid 1,0

  “O-B-O popular polymer hosts, and they have been most extensively symmetric stretching of at 985 studied for various applications [4].”

  Electrical and structural studies of a LiBOB-based gel polymer electrolyte DOI: 10.1007/s11581-016-1834-7
• 1165 cm⁻¹ tillid 1,0

  “Furthermore, antisymmetrical tween 500 and 1400 Moreover, the reflectivity was at 0.4%-1%, 1.05-1.10 stretching of B-O brought the absorption peaks at 1165 and low values of and at the wavelength of cm-1[7,10,11].”

  Preparation and properties of nanocrystal SmBO3 by nitrate-citrate sol-gel combustion method DOI: 10.1016/S1002-0721(08)60225-2