# Fluorescence from pentacyanopropenide in melamine

https://mdr.nims.go.jp/datasets/a2fbbbfa-0af4-4e53-a738-219c04881b40

## File

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## Id

a2fbbbfa-0af4-4e53-a738-219c04881b40

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-24T02:43:52.522988Z

## Updated at

2025-12-24T04:47:25.919402Z

## Published at

2025-12-24T07:20:29.119775Z

## Doi



## First published url

https://doi.org/10.1039/d5ma00400d

## Date published

2025-07-03

## Recorded date published

2025-8-26

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Fluorescence from pentacyanopropenide in melamine
  title_type: original
  lang: en

## Description

- description: Aggregation-induced optical phenomena are emerging as a central theme
    in modern materials science. In this study, tetracyanoethylene (TCNE) was reacted
    with and encapsulated by melamine. Crystallization from aqueous tetrahydrofuran
    solutions containing melamine and TCNE at varying concentrations produced vividly
    colored crystals with multi-wavelength fluorescence emission. Infrared spectroscopy
    and mass spectrometry identified these crystals as melamine incorporating trace
    amounts of 1,1,2,3,3-pentacyanopropenide. Fluorescence excitation–emission mapping
    revealed the concentration-dependent nature of the emission in both precursor
    solutions and the resulting crystals. Density functional theory calculations further
    attributed the multi-wavelength fluorescence to dimeric assemblies of the pentacyanopropenide.
    These findings demonstrate that encapsulating reactive molecules within crystalline
    melamine—exemplified here by pentacyanopropenide and its dimer—provides a general
    strategy for stabilizing otherwise unstable species while enabling unique optical
    responses.
  description_type: abstract
  lang: und

## Creator

- name: Hanen Mechi
  role: author
- name: Arthur Mantel
  role: author
- name: Vipin Mishra
  role: author
- name: Yuto Urano
  role: author
  orcid: https://orcid.org/0009-0004-3646-2781
  organization: National Institute for Materials Science
- name: Ryo Kitaura
  role: author
  orcid: https://orcid.org/0000-0001-8108-109X
  organization: National Institute for Materials Science
- name: Hidetsugu Shiozawa
  role: author

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: Fuluorescence, time-resolved spectroscopy
  schema: not_defined

## Rights

- identifier: cc-by-3.0
  date_licensed: 2025-07-03

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Materials Advances
  issn: '26335409'
  volume: '6'
  issue: '17'
  start_page: 5884
  end_page: 5891

## Conference



## Related item



## Funding

- identifier: 22-23407S
  funder_name: Grantová Agentura České Republiky
- identifier: PIN9127924
  funder_name: Austrian Science Fund
- identifier: V4-Japan/8F21010
  funder_name: Ministerstvo Školství, Mládeže a Tělovýchovy

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Fileset

- id: 4deec282-1363-4cc2-9dae-1ade76f56a70
  filename: d5ma00400d.pdf
  content_type: application/pdf
  size: 3323573
  md5: 80c2edbfc785cc3ff2a1bf2ec611b61e

## Thumbnail

fileset_id: 4deec282-1363-4cc2-9dae-1ade76f56a70
filename: d5ma00400d.pdf