Ion‐selective langmuir blodgett films of a chromoionophore

Igor K. Lednev; Michael C. Petty

doi:10.1002/amo.860050302

Ion‐selective langmuir blodgett films of a chromoionophore

Igor K. Lednev
, Michael C. Petty

Chemistry

University at Albany

Durham University

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

Langmuir–Blodgett films built up from an amphiphilic derivative of benzothiazolium styryl dye containing a 1,10‐dithia‐18‐crown‐6 ether group have been found to complex with ‘soft’ polarisable ions such as Ag⁺ and Hg²⁺ in water. The films exhibited high sensitivity (stability constant of complex formation K ≈ 10⁵ M⁻¹) and high selectivity (e.g. K(Ag⁺)/K(Pb²⁺)> 10⁵) compared with aqueous solutions of similar ionophores. This was attributed to the predominant formation of complexes with ligand–cation stoichiometries of 2:1 in the films.

Original language	English
Pages (from-to)	137-143
Number of pages	7
Journal	Advanced Materials for Optics and Electronics
Volume	5
Issue number	3
DOIs	https://doi.org/10.1002/amo.860050302
State	Published - 1995

Keywords

Langmuir–Blodgett film
absorbance
barium
chromoionophore
complex formation
crown ether
lead
mercury
metal cation
sensor
silver
stability constant
water

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title = "Ion‐selective langmuir blodgett films of a chromoionophore",

abstract = "Langmuir–Blodgett films built up from an amphiphilic derivative of benzothiazolium styryl dye containing a 1,10‐dithia‐18‐crown‐6 ether group have been found to complex with {\textquoteleft}soft{\textquoteright} polarisable ions such as Ag+ and Hg2+ in water. The films exhibited high sensitivity (stability constant of complex formation K ≈ 105 M−1) and high selectivity (e.g. K(Ag+)/K(Pb2+)> 105) compared with aqueous solutions of similar ionophores. This was attributed to the predominant formation of complexes with ligand–cation stoichiometries of 2:1 in the films.",

keywords = "Langmuir–Blodgett film, absorbance, barium, chromoionophore, complex formation, crown ether, lead, mercury, metal cation, sensor, silver, stability constant, water",

author = "Lednev, \{Igor K.\} and Petty, \{Michael C.\}",

year = "1995",

doi = "10.1002/amo.860050302",

language = "English",

volume = "5",

pages = "137--143",

journal = "Advanced Materials for Optics and Electronics",

issn = "1057-9257",

publisher = "John Wiley and Sons Inc",

number = "3",

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TY - JOUR

T1 - Ion‐selective langmuir blodgett films of a chromoionophore

AU - Lednev, Igor K.

AU - Petty, Michael C.

PY - 1995

Y1 - 1995

N2 - Langmuir–Blodgett films built up from an amphiphilic derivative of benzothiazolium styryl dye containing a 1,10‐dithia‐18‐crown‐6 ether group have been found to complex with ‘soft’ polarisable ions such as Ag+ and Hg2+ in water. The films exhibited high sensitivity (stability constant of complex formation K ≈ 105 M−1) and high selectivity (e.g. K(Ag+)/K(Pb2+)> 105) compared with aqueous solutions of similar ionophores. This was attributed to the predominant formation of complexes with ligand–cation stoichiometries of 2:1 in the films.

AB - Langmuir–Blodgett films built up from an amphiphilic derivative of benzothiazolium styryl dye containing a 1,10‐dithia‐18‐crown‐6 ether group have been found to complex with ‘soft’ polarisable ions such as Ag+ and Hg2+ in water. The films exhibited high sensitivity (stability constant of complex formation K ≈ 105 M−1) and high selectivity (e.g. K(Ag+)/K(Pb2+)> 105) compared with aqueous solutions of similar ionophores. This was attributed to the predominant formation of complexes with ligand–cation stoichiometries of 2:1 in the films.

KW - Langmuir–Blodgett film

KW - absorbance

KW - barium

KW - chromoionophore

KW - complex formation

KW - crown ether

KW - lead

KW - mercury

KW - metal cation

KW - sensor

KW - silver

KW - stability constant

KW - water

UR - https://www.scopus.com/pages/publications/84984144180

U2 - 10.1002/amo.860050302

DO - 10.1002/amo.860050302

M3 - Article

SN - 1057-9257

VL - 5

SP - 137

EP - 143

JO - Advanced Materials for Optics and Electronics

JF - Advanced Materials for Optics and Electronics

IS - 3

ER -

Ion‐selective langmuir blodgett films of a chromoionophore

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Keywords

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