Evidence map›Paper›PMID 40988419›Full record

ArticleAngewandte Chemie (International ed. in English)2025

Quantum Interference Effect in Saturated Systems: Effect of Anchoring Group Position on Conductance of Bipiperidines and their in-situ Derived Dithiocarbamates.

Umar Rashid, Abdalghani H S Daaoub, P A Sreelakshmi, Sara Sangtarash, Hatef Sadeghi, Veerabhadrarao Kaliginedi

Abstract read
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In one paragraph

Article in Angewandte Chemie (International ed. in English), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

6 authors.

Umar Rashid *Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India.ORCID https://orcid.org/0000-0001-6583-061X
Abdalghani H S Daaoub *Quantum Device Modelling Group, School of Engineering, University of Warwick, Coventry, CV4 7AL, UK.
P A SreelakshmiDepartment of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India.ORCID https://orcid.org/0009-0001-8009-5825
Sara SangtarashQuantum Device Modelling Group, School of Engineering, University of Warwick, Coventry, CV4 7AL, UK.
Hatef SadeghiQuantum Device Modelling Group, School of Engineering, University of Warwick, Coventry, CV4 7AL, UK.
Veerabhadrarao KaliginediDepartment of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India.ORCID https://orcid.org/0000-0002-4361-741X

Funding

EPSRC New Investigator APP17327Indian Institute of Science DST/INSPIRE/04/2018/002983SERB-Core research CRG/2020/002302UKRI for Future Leaders Fellowship MR/S015329/2UKRI for Future Leaders Fellowship MR/X015181/1
6 · The paper itself

Abstract

This study investigates quantum interference in σ-only molecular systems, focusing on the impact of anchoring group nature and its position. Using a combined approach of mechanically controlled break junction experiments and quantum transport calculations, we demonstrate that meta-connected σ-conducting bipiperidine-based molecular junctions exhibit higher conductance than para-connected ones. This trend is opposite to that of the trend typically observed in π-molecular systems, indicating the existence of distinctly different quantum interference phenomenon in σ-only molecular systems. Further, we show that anchoring group modifications achieved through in-situ dithiocarbamylation significantly alters the conductance and decay factors. We also elucidate the mechanism behind multiple conductance features observed in aliphatic bipiperidines with cyclic secondary amine and dithiocarbamate anchoring groups. This work demonstrates σ-quantum interference in bipiperidine-based molecular systems and highlights how changes in junction configuration, nature of the anchoring group and its position can be used to control conductance in σ-only molecular systems.

Indexed as

Bipiperidine conductancein‐situ thiocarbamylationQuantum interferenceQuantum TransportSaturated (σ) molecular structuresSingle molecular conductance

Identifiers

PMID40988419
PMCPMC12624308

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.