東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

FindBook

Google Book

Amazon

博客來

Cryogenic Studies of Upper Atmosphere : = Chemical Species and Reactions.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Cryogenic Studies of Upper Atmosphere :/
其他題名:	Chemical Species and Reactions.
作者:	Lachowicz, Anton Luke.
面頁冊數:	1 online resource (100 pages)
附註:	Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
Contained By:	Dissertations Abstracts International85-01B.
標題:	Physical chemistry. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30313106click for full text (PQDT)
ISBN:	9798379783969

Cryogenic Studies of Upper Atmosphere : = Chemical Species and Reactions.
Lachowicz, Anton Luke.

Cryogenic Studies of Upper Atmosphere :Chemical Species and Reactions. - 1 online resource (100 pages)

Source: Dissertations Abstracts International, Volume: 85-01, Section: B.

Thesis (Ph.D.)--Yale University, 2023.

Includes bibliographical references

The atmosphere provides a different medium than Earth's surface, with a different background of radiation as well as far from standard pressure and temperature. It can be home to unique chemical reactions. Measuring the fundamental properties of these systems is required to understand the macroscopic effects observed in the atmosphere. To obtain these measurements, gas-phase techniques such as cryogenicion spectroscopy and selected-ion, flow-tube experiments have been employed. Solution-phase and bulk gas-phase measurements suffer from difficulty isolating unique species and keeping them in uniform environments. On the other hand, cryogenic-ion spectroscopy benefits from a more uniform environment. The cryogenic temperatures (~10 - 50 K) limit the total number of states in play, which increases the precision of measurements. Selected-ion flow-tube experiments provide one of the best ways to explore the kinetic interactions of a chemical species. Together, cryogenic ion spectroscopy and selected ion flow-tube experiments provide a nearly complete picture of species' chemical interactions that can explain macroscopic phenomena. These methods were employed to determine the of the Sm + O → SmO+ + e- chemi-ionization reaction, as well as other oxygen and ozone reactions with samarium and neodymium. Ultimately, the bond dissociation energy of SmO+ was measured to be 5.596 ± 0.004 eV. This allowed for the most precise to date calculation of the thermicity of the chemiionization reaction at 0.048 ± 0.004 eV endothermic.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798379783969Subjects--Topical Terms:

1981412
Physical chemistry.
Subjects--Index Terms:

Cryogenic Ion spectroscopyIndex Terms--Genre/Form:

542853
Electronic books.

Cryogenic Studies of Upper Atmosphere : = Chemical Species and Reactions.
LDR:02934nmm a2200397K 4500 001 2362987
005 20231109104725.5
006 m o d
007 cr mn ---uuuuu
008 241011s2023 xx obm 000 0 eng d
020 $a 9798379783969
035 $a (MiAaPQ)AAI30313106
035 $a AAI30313106
040 $a MiAaPQ $b eng $c MiAaPQ $d NTU
100 1 $a Lachowicz, Anton Luke. $3 3703728
245 1 0 $a Cryogenic Studies of Upper Atmosphere : $b Chemical Species and Reactions.
264 0 $c 2023
300 $a 1 online resource (100 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 85-01, Section: B.
500 $a Advisor: Johnson, Mark Albert.
502 $a Thesis (Ph.D.)--Yale University, 2023.
504 $a Includes bibliographical references
520 $a The atmosphere provides a different medium than Earth's surface, with a different background of radiation as well as far from standard pressure and temperature. It can be home to unique chemical reactions. Measuring the fundamental properties of these systems is required to understand the macroscopic effects observed in the atmosphere. To obtain these measurements, gas-phase techniques such as cryogenicion spectroscopy and selected-ion, flow-tube experiments have been employed. Solution-phase and bulk gas-phase measurements suffer from difficulty isolating unique species and keeping them in uniform environments. On the other hand, cryogenic-ion spectroscopy benefits from a more uniform environment. The cryogenic temperatures (~10 - 50 K) limit the total number of states in play, which increases the precision of measurements. Selected-ion flow-tube experiments provide one of the best ways to explore the kinetic interactions of a chemical species. Together, cryogenic ion spectroscopy and selected ion flow-tube experiments provide a nearly complete picture of species' chemical interactions that can explain macroscopic phenomena. These methods were employed to determine the of the Sm + O → SmO+ + e- chemi-ionization reaction, as well as other oxygen and ozone reactions with samarium and neodymium. Ultimately, the bond dissociation energy of SmO+ was measured to be 5.596 ± 0.004 eV. This allowed for the most precise to date calculation of the thermicity of the chemiionization reaction at 0.048 ± 0.004 eV endothermic.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Physical chemistry. $3 1981412
650 4 $a Analytical chemistry. $3 3168300
650 4 $a Atmospheric sciences. $3 3168354
653 $a Cryogenic Ion spectroscopy
653 $a Gas-phase techniques
653 $a Kinetic interactions
653 $a Macroscopic phenomena
653 $a Standard pressure
655 7 $a Electronic books. $2 lcsh $3 542853
690 $a 0494
690 $a 0486
690 $a 0725
710 2 $a ProQuest Information and Learning Co. $3 783688
710 2 $a Yale University. $b Chemistry. $3 2101664
773 0 $t Dissertations Abstracts International $g 85-01B.
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30313106 $z click for full text (PQDT)