{"title":"","authors":"Muhammad Usama, Samad Razzaq and Kai S. Exner*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29796,"journal":{"name":"ACS Physical Chemistry Au","volume":"5 1","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":3.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsphyschemau.4c00058","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144412127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mohammad A. Rahman, Mst Nigar Sultana, Daud Sharif, Sultan Mahmud, Justin Legleiter, Peng Li, Blake Mertz* and Stephen J. Valentine*,
{"title":"","authors":"Mohammad A. Rahman, Mst Nigar Sultana, Daud Sharif, Sultan Mahmud, Justin Legleiter, Peng Li, Blake Mertz* and Stephen J. Valentine*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29796,"journal":{"name":"ACS Physical Chemistry Au","volume":"5 1","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":3.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsphyschemau.4c00048","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144354721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
José A. S. Laranjeira, Nicolas Martins, Pablo A. Denis and Julio Sambrano*,
{"title":"","authors":"José A. S. Laranjeira, Nicolas Martins, Pablo A. Denis and Julio Sambrano*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":29796,"journal":{"name":"ACS Physical Chemistry Au","volume":"5 1","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":3.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acsphyschemau.4c00068","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144412131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
ACS Physical Chemistry AuPub Date : 2025-01-22eCollection Date: 2025-03-26DOI: 10.1021/acsphyschemau.4c00084
William Bro-Jørgensen, Andreas Juul Bay-Smidt, Davide Donadio, Gemma C Solomon
{"title":"Heavy Solution for Molecular Thermal Management: Phonon Transport Suppression with Heavy Atoms.","authors":"William Bro-Jørgensen, Andreas Juul Bay-Smidt, Davide Donadio, Gemma C Solomon","doi":"10.1021/acsphyschemau.4c00084","DOIUrl":"10.1021/acsphyschemau.4c00084","url":null,"abstract":"<p><p>Thermal management in molecular systems presents challenges that require a deeper understanding of phonon transport, an essential aspect of heat conduction in single-molecule junctions. Our work introduces the use of heavy atoms as a strategy for suppressing phonon transport in organic molecules. Starting with a one-dimensional (1D) force-constant model and density functional theory calculations of model chemical systems, we illustrate how increasing the mass of a central atom affects phonon transmission and conductance. Following this, we turned our attention to the chemically accessible systems of metallapolyynes and extended metal atom chains (EMACs). Our findings suggest that several of the studied EMACs exhibit thermal conductance either near or below a recently proposed threshold of 10 pW/K-a crucial step toward reaching high thermoelectric figure of merits. Specifically, we predict that the molecule MoMoNi(npo)<sub>4</sub>(NCS)<sub>2</sub> has a thermal conductance of just 8.3 pW/K at 300 K. Our results demonstrate that conceptually simple chemical modifications can markedly reduce the thermal conductance of single molecules; these results both deepen our understanding of the mechanisms driving single-molecule phonon thermal conductance and suggest a path toward using single molecules as thermoelectric materials.</p>","PeriodicalId":29796,"journal":{"name":"ACS Physical Chemistry Au","volume":"5 2","pages":"162-170"},"PeriodicalIF":3.7,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11950860/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143753835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}