Publications by Dr Nick Walker - ePrints

Browsing publications by Dr Nick Walker.

Newcastle Authors	Title	Year
Eva Gougoula Dr Nick Walker	A global rho-axis method for fitting asymmetric tops with one methyl internal rotor and two 14N nuclei: Application of BELGI-2N to the microwave spectra of four methylimidazole isomers	2024
Eva Gougoula Dr Nick Walker	Geometry of the Argon¼Imidazole Complex Revealed by the Microwave Spectra of Four Isotopologues	2024
Charlotte Cummings Dr Nick Walker	Hydrogen Bonding and Molecular Geometry in Isolated Hydrates of 2-Ethylthiazole Characterised by Microwave Spectroscopy	2024
Surabhi Gupta Charlotte Cummings Dr Nick Walker Professor Elangannan Arunan	Microwave Spectroscopic and Computational Analyses of the Phenylacetylene···Methanol Complex: Insights into Intermolecular Interactions	2024
Charlotte Cummings Dr Nick Walker	The Challenging Conformational Landscape of Cysteamine···H₂O Revealed by the Strong Interplay of Rotational Spectroscopy and Quantum Chemical Calculations	2024
Eva Gougoula Charlotte Cummings Dr Nick Walker	Cooperative hydrogen bonding in thiazole⋯(H₂O)₂ revealed by microwave spectroscopy	2023
Charlotte Cummings Dr Nick Walker	Noncovalent Interactions in the Molecular Geometries of 4‑Methylthiazole···H₂O and 5‑Methylthiazole···H₂O Revealed byMicrowave Spectroscopy	2023
Eva Gougoula Charlotte Cummings Dr Chris Medcraft Juliane Heitkamper Dr Nick Walker et al.	Microwave Spectra, Molecular Geometries, and Internal Rotation of CH₃ in N-methylimidazole...¼H₂O and 2-methylimidazole...¼H₂O Complexes	2022
Dr Su Stephens Dr Nick Walker	The microwave spectrum of the C2H2…AgI complex assigned and analysed using PGOPHER	2022
Dr Nick Walker Professor Anthony Legon	Non-Covalent Interactions of the Lewis Acids Cu–X, Ag–X, andAu–X (X = F and Cl) with Nine Simple Lewis Bases B: A SystematicInvestigation of Coinage–Metal Bonds by Ab Initio Calculations	2021
Eva Gougoula Dr Nick Walker	A chalcogen-bonded complex (CH₃)₃N^...S=C=O characterised by rotational spectroscopy	2020
Eva Gougoula Dr Daniel Cole Dr Nick Walker	Bifunctional Hydrogen Bonding of Imidazole with Water Explored by Rotational Spectroscopy and DFT Calculations	2020
Eva Gougoula Dr Nick Walker	A chalcogen-bonded complex H₃N⋯S=C=S formed by ammonia and carbon disulfide characterised by chirped-pulse, broadband microwave spectroscopy	2019
Eva Gougoula Dr Chris Medcraft Juliane Heitkamper Dr Nick Walker	Barriers to internal rotation in methylimidazole isomers determined by rotational spectroscopy	2019
Eva Gougoula Dr Nick Walker	Conformational Isomers of Trans-Urocanic Acid Observed by Rotational Spectroscopy	2019
Dr Chris Medcraft Dr Nick Walker	Rotational Spectra and Nuclear Quadrupole Coupling Constants of 4- and 2-Iodoimidazole	2018
Dr Nick Walker	The H₂S Dimer is Hydrogen-Bonded: Direct Confirmation from Microwave Spectroscopy	2018
Professor Anthony Legon Dr Nick Walker	What's in a name? 'Coinage-metal' non-covalent bonds and their definition	2018
Dr Chris Medcraft John Mullaney Dr Nick Walker Professor Anthony Legon	A complex Ar-AgI produced by laser ablation and characterised by rotational spectroscopy and ab initio calculations: Variation of properties along the series Ar-AgX (X = F, Cl, Br and I)	2017
John Mullaney Dr Chris Medcraft Emeritus Professor Bernard Golding Dr Nick Walker Professor Anthony Legon et al.	Cooperative Hydrogen Bonds Form a Pseudocycle Stabilizing an Isolated Complex of Isocyanic Acid with Urea	2017
Dr Graham Cooper Dr Chris Medcraft Josh Littlefair Professor Thomas Penfold Dr Nick Walker et al.	Halogen bonding properties of 4-iodopyrazole and 4-bromopyrazole characterised by rotational spectroscopy and ab initio calculations	2017
Dr Chris Medcraft Eva Gougoula Dror Bittner John Mullaney Dr Nick Walker et al.	Molecular Geometries and Other Properties of H₂O⋯AgI and H₃N⋯AgI as Characterised by Rotational Spectroscopy and Ab Initio Calculations	2017
Dror Bittner Dr Nick Walker Professor Anthony Legon	A two force-constant model for complexes B⋯M–X (B is a Lewis base and MX is any diatomic molecule): Intermolecular stretching force constants from centrifugal distortion constants DJ or 𝜟𝑱	2016
Dror Bittner Dr Su Stephens Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon et al.	Gas phase complexes of H₃N ··· CuF and H₃N ··· CuI studied by rotational spectroscopy and ab initio calculations: the effect of X (X = F, Cl, Br, I) in OC ··· CuX and H₃N ··· CuX	2016
Dr Chris Medcraft Dror Bittner Dr Nick Walker Professor Anthony Legon	Geometries of H₂S-MI (M = Cu, Ag, Au) complexes studied by rotational spectroscopy: The effect of the metal atom	2016
John Mullaney Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon	Geometry of an Isolated Dimer of Imidazole Characterised by Broadband Rotational Spectroscopy and Ab Initio Calculations	2016
Susanna Stephens Dr Nick Walker Professor Anthony Legon	H₃P⋯AgI: generation by laser-ablation and characterization by rotational spectroscopy and ab initio calculations	2016
Dror Bittner Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon	Highly-Unsaturated Platinum and Palladium Carbenes, PtC₃ and PdC₃, Isolated and Characterised in the Gas Phase	2016
John Mullaney Dr Su Stephens Dr Nick Walker	Vibrational Energies and Full Analytic Potential Energy Functions ofPbI and InI from Pure Microwave Data	2016
Dror Bittner Dr Daniel Zaleski Dr Su Stephens Dr Nick Walker Professor Anthony Legon et al.	A monomeric complex of ammonia and cuprous chloride: H₃N···CuCl isolated and characterised by rotational spectroscopy and ab initio calculations	2015
John Mullaney Dr Su Stephens Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon et al.	An Isolated Complex of Ethyne and Gold Iodide Characterized by Broadband Rotational Spectroscopy and Ab initio Calculations	2015
Dr Su Stephens Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon	Characterisation of the Weak Halogen Bond in N₂···ICF₃ by Pure Rotational Spectroscopy	2015
Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon	Chemistry in Laser-Induced Plasmas: Formation of M–C≡C–Cl (M = Ag or Cu) and their Characterization by Rotational Spectroscopy	2015
Dr Daniel Zaleski Dr Su Stephens Dror Bittner Dr Nick Walker Professor Anthony Legon et al.	Distortions of ethyne when complexed with a cuprous or argentous halide: the rotational spectrum of C₂H₂⋯CuF	2015
Professor Anthony Legon Dr Nick Walker	Halogen Bonding in the Gas Phase: A Comparison of the Iodine Bond in B⋯ICl and B⋯ICF₃ for Simple Lewis Bases B	2015
Dr Daniel Zaleski John Mullaney Dror Bittner Dr Nick Walker Professor Anthony Legon et al.	Interaction of a pseudo-π C—C bond with cuprous and argentous chlorides: Cyclopropane⋯CuCl and cyclopropane⋯AgCl investigated by rotational spectroscopy and ab initio calculations	2015
Dr Nick Walker Dr Daniel Zaleski Dr Su Stephens	The Pure Rotational Spectra of the Open-Shell Diatomic Molecules PbI and SnI	2015
Dror Bittner Dr Daniel Zaleski Dr Su Stephens Dr Nick Walker Professor Anthony Legon et al.	The Sigma-Hole Interaction Between Sulfur Hexafluoride and Ammonia Characterised by Broadband Rotational Spectroscopy	2015
Dr Daniel Zaleski Dr Su Stephens Dr Nick Walker	A perspective on chemistry in transient plasma from broadband rotational spectroscopy	2014
Dr Su Stephens Dror Bittner Dr Nick Walker Professor Anthony Legon	Changes in the Geometries of C₂H₂ and C₂H₄ on Coordination to CuCl Revealed by Broadband Rotational Spectroscopy and ab-Initio Calculations	2014
Dr Su Stephens Dr Daniel Zaleski Dr Nick Walker Professor Anthony Legon	Distortion of ethyne on coordination to silver acetylide, C₂H₂⋅⋅⋅AgCCH, characterised by broadband rotational spectroscopy and ab initio calculations	2014
Dr Su Stephens Dr Nick Walker Professor Anthony Legon	Distortion of ethyne on formation of a pi complex with silver chloride: C₂H₂^...Ag-Cl characterised by rotational spectroscopy and ab initio calculations	2012
Dr Nick Walker	H₂S...Ag–I synthesized by a laser-ablation method and identified by its rotational spectrum	2012
Dr Nick Walker	Molecular geometry of OC⋅⋅⋅AgI determined by broadband rotational spectroscopy and ab initio calculations	2012
Dr Su Stephens Dr Nick Walker Professor Anthony Legon	The halogen bond between ethene and a simple perfluoroiodoalkane: C₂H₄^...ICF₃ identified by broadband rotational spectroscopy	2012
Dr Nick Walker	A prototype transition-metal olefin complex C₂H₄⋯AgCl synthesised by laser ablation and characterised by rotational spectroscopy and ab initio methods	2011
Dr Nick Walker	Characterisation of H₂S...CuCl and H₂S...AgCl Isolated in the Gas Phase: A Rigidly Pyramidal Geometry at Sulphur Revealed by Rotational Spectroscopy and Ab Initio Calculations	2011
Dr Nick Walker	Internal Rotation and Halogen Bonds in CF₃I...NH₃ and CF₃I...N(CH₃)₃ Probed by Broadband Rotational Spectroscopy	2011
Dr Nick Walker	Molecular Geometries of H₂S...ICF₃ and H₂O...ICF₃ Characterised by Broadband Rotational Spectroscopy	2011
Dr Nick Walker	Monohydrate of Argentous Fluoride; H₂O...Ag-F Characterised by Rotational Spectroscopy and Ab Initio Calculations	2011
Dr Nick Walker	Monohydrates of Cuprous Chloride and Argentous Chloride: H₂O...Cu-Cl and H₂O...Ag-Cl Characterised by Rotational Spectroscopy and ab initio Calculations	2011
Dr Nick Walker	Rotational spectra and properties of complexes B···ICF₃ (B=Kr or CO) and a comparison of the efficiency of ICI and ICF₃ as iodine donors in halogen bond formation	2011
Dr Nick Walker	Determination of Nuclear Spin-rotation Coupling Constants in CF₃I by Chirped-pulse Fourier Transform Microwave Spectroscopy	2010
Dr Nick Walker	Experimental Detection and Properties of H₂O⋅⋅⋅AgCl and H₂S⋅⋅⋅AgCl by Rotational Spectroscopy	2010
Dr Nick Walker	H₃N...Ag–Cl: Synthesis in a Supersonic Jet and Characterisation by Rotational Spectroscopy and Ab Initio Calculations	2010
Dr Nick Walker	An Investigation of the Molecular Geometry and Electronic Structure of Nitryl Chloride by a Combination of Rotational Spectroscopy and Ab Initio Calculations	2008
Dr Nick Walker	Microwave Spectrum and Structure of the Polar N₂O Dimer	2008
Dr Nick Walker	Nuclear Hyperfine Coupling Constants of Nitryl Bromide from Rotational Spectroscopy	2008
Dr Nick Walker	Quadrupole Mass Spectrometry and Time-of-flight Analysis of Ions Resulting from 532 nm Pulsed Laser Ablation of Ni, Al and ZnO Targets	2008
Dr Nick Walker	Microwave Spectrum and Structure of Carbonyl Gold Iodide, OCAuI	2007
Dr Nick Walker	New Opportunities and Emerging Themes of Research in Microwave Spectroscopy	2007
Dr Nick Walker	N₂-Cu-F: A Complex of Dinitrogen and Cuprous Fluoride Characterized by Rotational Spectroscopy	2006
Dr Nick Walker	Nuclear Hyperfine Coupling Constants of Aluminium Monoiodide Determined by Fourier-transform Microwave Spectroscopy	2006
Dr Nick Walker	Nuclear Hyperfine Coupling Constants of Indium Monoiodide Determined by Fourier-transform Microwave Spectroscopy	2006
Dr Nick Walker	Frontiers in the Infrared Spectroscopy of Gas Phase Metal Ion Complexes	2005
Dr Nick Walker	Infrared Photodissociation Spectroscopy of Mg⁺(H₂O)Ar_n Complexes: Isomers in Progressive Microsolvation	2005
Dr Nick Walker	Growth Dynamics and Intracluster Reactions in Ni⁺(CO₂)_n via Infrared Spectroscopy	2004
Dr Nick Walker	Infrared Spectroscopy of V⁺(CO₂)_n and V⁺(CO₂)_nAr Complexes	2004
Dr Nick Walker	Microwave Spectra and Structures of KrAuF, KrAgF, and KrAgBr; ⁸³Kr Nuclear Quadrupole Coupling and the Nature of Noble Gas-Noble Metal Halide Bonding	2004
Dr Nick Walker	Generation of "Unstable" Doubly Charged Metal Ion Complexes in a Laser Vaporization Cluster Source	2003
Dr Nick Walker	Generation of "Unstable" Doubly Charged Metal Ion Complexes in a Laser Vaporization Cluster Source	2003
Dr Nick Walker	Infrared Spectroscopy of V⁺(H₂O) and V⁺(D₂O) Complexes: Solvent Deformation and an Incipient Reaction	2003
Dr Nick Walker	Solvent Coordination in Gas-Phase [Mn·(H2O)n]2+ and [Mn·(ROH)n]2+ Complexes: Theory and Experiment	2003
Dr Nick Walker	The Metal Coordination in Ni⁺(CO₂)_n and NiO₂⁺(CO₂)_m Complexes	2003
Dr Nick Walker	Microwave Spectra, Geometries and Hyperfine Interactions of OCAgX (X=F, Cl, Br)	2002
Dr Nick Walker	Microwave Spectrum, Geometry and Hyperfine Constants of PdCO	2002
Dr Nick Walker	The Microwave Spectrum and Structure of KrAgF	2002
Dr Nick Walker	Comparisons in the Behaviour of Stable Copper(II), Silver(II) and Gold(II) Complexes in the Gas Phase: Are There Implications for Condensed Phase Chemistry?	2001
Dr Nick Walker	Coordination and Chemistry of Stable Cu(II) Complexes in the Gas Phase	2001
Dr Nick Walker	Fourier Transform Microwave Spectroscopy of the ²Σ⁺ Ground States of YbX (X=F, Cl, Br): Characterisation of Hyperfine Effects and Determination of the Molecular Geometries	2001
Dr Nick Walker	Microwave Spectra, Geometries and Hyperfine Interactions of OCCuX (X=F, Cl, Br)	2001
Dr Nick Walker	Unexpected Stability of [CuAr]²⁺, [AgAr]²⁺, [AuAr]²⁺, and Their Larger Clusters	2001
Dr Nick Walker	A Gas-Phase Study of the Coordination of Mg²⁺ with Oxygen- and Nitrogen-containing Ligands	2000
Dr Nick Walker	Comment on "Do Cu²⁺NH₃ and Cu²⁺H₂O Exist?: Theory Confirms Yes!"(Chemical Physics Letters 318 (2000) 333–339)	2000
Dr Nick Walker	Competitive Charge Transfer Reactions in Small [Mg(H₂O)_n]²⁺ Clusters	2000
Dr Nick Walker	Cluster Ion Studies of Ho²⁺ and Ho³⁺ Solvation in the Gas Phase	1999
Dr Nick Walker	Stable Gold(II) Complexes in the Gas Phase	1999