U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 126 - 150 of 165

Thermochemistry of Inosine

November 1, 2005
Author(s)
J A. Boerio-Goates, Sarah D. Hopkins, Ricardo A. Monteiro, M D. Ribeiro da Silva, M A. Ribeiro da Silva, Robert N. Goldberg
… a standard molar enthalpy of combustion of DcH m= ?(4802.2 4.5) kJ mol-1. From this, a value for the standard molar enthalpy of formation DfH m of ?(847.9 4.7) kJ mol-1 was obtained. The standard molar heat capacity … entropy DT0S m(inosine,cr) at T = 298.15 K is (287.99 0.58) J K-1 mol-1 and the standard molar entropy of formation …

Laser Cooling of Erbium Atoms

May 21, 2005
Author(s)
Jabez J. McClelland, H Y. Ban, Marcus Jacka, James L. Hanssen, Joseph Reader
… lines and have determined their lifetimes to be (5.6 ? 1.4) s and (20 ? 4) s, respectively. Calculations of the 1299 nm line lifetime …

An Ideal Molecular Sieve for Acetylene Removal from Ethylene with Record Selectivity and Productivity

December 20, 2017
Author(s)
Bin Li, Xili Cui, Dan O'Nolan, Hui-Min Wen, Mengdie Jiang, Rajamani Krishna, Hui Wu, Rui-Biao Lin, Yu-Sheng Chen, Daqiang Yuan, Huabin Xing, Wei Zhou, Qilong Ren, Guodong Qian, Michael J. Zaworotko, Banglin Chen
… the most widely used raw chemicals such as ethylene (C 2 H 4 ) and propylene (C 3 H 6 ) in the future. ^1-3^ Although … termed as UTSA-200) with ultra-fine-tuning of pore size (3.4 angstrom}A)as molecular sieves to effectively block C 2 H 4 … to take up a record-high amount of acetylene (C 2 H 2 , 58 cm 3 cm -3 under 0.01 bar and 298K) attributed to the …

Measurement Science Roadmap for Net-Zero Energy Buildings

March 18, 2010
Author(s)
Joan Pellegrino, Arthur H. Fanney, Andrew K. Persily, Piotr A. Domanski, William M. Healy, Steven T. Bushby
… residential and commercial buildings were responsible for 58% and 42% of the $392 billion associated with building …

Thermochemistry of Adenosine

August 1, 2001
Author(s)
J A. Boerio-Goates, M R. Francis, Robert N. Goldberg, M A. Ribeiro da Silva, M D. Ribeiro da Silva, Yadu D. Tewari
… calorimetry and was found to be Δ} c H m = -(5139.4 3.3) kJ × mol u-1^; the standard molar heat capacity C p,m … equal to} T/K less then or equal to} 328 C p,m = (290.10 0.58) J × K -1 × mol -1 at T = 298.15 K}; and the saturation … molar Gibbs free energy of formation Δ} f G m = -(204.4 3.6) kJ × mol -1 . The function Phi m = Δ} T 0 S m - Δ} T^ …

Characterizing rapid changes in the prevalence and concentration of key compounds in Philadelphia's fentanyl supply, March-November 2024

June 22, 2025
Author(s)
Karli Hochstatter, Talia Nadel, Edward Sisco, Sarah Laurel, Tori McDowell, Elise Pyfrom, Meghan Appley, Fernando Montero
… Xylazine prevalence declined from 100 % in March 2024–58 % in March 2025. Conversely, lidocaine and tetracaine … novel compounds, medetomidine and bis(2,2,6,6-tetramethyl-4- piperidyl) sebacate (BTMPS), were first detected in April …

Crystal Structure, Sorption Property and Electronic Structure of the Flexible MOF, (Ni-4,4'azopyridine)[Ni(CN)4]

August 16, 2021
Author(s)
Winnie Wong-Ng, Gregory T. McCandless, Jeffrey T. Culp, Matthew Lawson, Yu-Sheng Chen, Daniel Siderius, Lan Li
… metal organic framework (MOF) compound, Ni(L)[Ni(CN)4], (L = 4,4'azopyridine (C10N4H8), nicknamed AzoPyr) is a 3D porous … Ni-AzoPyr, Multiple twinned crystals, Flexible Ni(CN)4-Based MOF, Synchrotron X-ray, Pore size distribution, … Property and Electronic Structure of the Flexible MOF, (Ni-4,4'azopyridine)[Ni(CN)4] …
Displaying 126 - 150 of 165
Was this page helpful?