rotational–vibrational coupling occurs when the rotation frequency of a system is close to or identical to a natural frequency of internal vibration....
11 KB (1,551 words) - 19:26, 3 May 2024
Rovibronic coupling, also known as rotation/vibration-electron coupling, denotes the simultaneous interactions between rotational, vibrational, and electronic...
1 KB (109 words) - 20:03, 24 January 2024
the vibrational spectrum. For a given vibrational transition, the same theoretical treatment as for pure rotational spectroscopy gives the rotational quantum...
49 KB (6,786 words) - 19:45, 24 May 2025
Selection rule (section Vibrational spectra)
observed in vibration–rotation spectra. The excited-state wave function is the product of two wave functions such as vibrational and rotational. The general...
22 KB (2,311 words) - 22:37, 21 April 2025
coupling (also called nonadiabatic coupling or derivative coupling) in a molecule involves the interaction between electronic and nuclear vibrational...
21 KB (2,761 words) - 20:39, 22 May 2025
referred to as pure rotational spectroscopy to distinguish it from rotational-vibrational spectroscopy where changes in rotational energy occur together...
51 KB (7,154 words) - 07:00, 22 November 2024
other Rotational–vibrational coupling, occurring when rotation frequency of an object is close to or identical to a natural internal vibration frequency...
2 KB (357 words) - 05:11, 2 July 2023
coupled when they are interacting with each other. In classical mechanics, coupling is a connection between two oscillating systems, such as pendulums connected...
9 KB (1,110 words) - 07:18, 25 January 2024
rules of angular momentum coupling apply to spin as well. In general the conservation of angular momentum implies full rotational symmetry (described by...
17 KB (2,234 words) - 20:09, 21 February 2024
another end (ex: motor transfer power to pump through coupling). Other common uses: To alter the vibration characteristics of rotating units To connect the...
22 KB (2,715 words) - 17:35, 7 December 2024
term quantum coupling does not have a universally accepted definition in scientific literature—unlike quantum entanglement or the coupling constant—it...
3 KB (291 words) - 07:08, 28 May 2025
Infrared spectroscopy (redirect from Vibrational spectroscopy)
vibrational spectroscopy Photothermal microspectroscopy Raman spectroscopy Rotational-vibrational spectroscopy Time-resolved spectroscopy Vibrational...
53 KB (5,943 words) - 18:48, 22 May 2025
regarded as a relatively recent technique. Although Vibrational Optical Activity and in particular Vibrational Circular Dichroism, has been known for a long...
17 KB (2,124 words) - 16:51, 4 May 2025
Eckart conditions (section Vibrational energy)
make it possible to approximately separate rotation from vibration. Although the rotational and vibrational motions of the nuclei in a molecule cannot...
17 KB (3,346 words) - 06:44, 16 September 2024
straight arrows. The vibrational ground states of each electronic state are indicated with thick lines, the higher vibrational states with thinner lines...
4 KB (457 words) - 21:09, 29 May 2025
or couplings, where it can cause failures if not controlled. A second effect of torsional vibrations applies to passenger cars. Torsional vibrations can...
17 KB (2,444 words) - 12:19, 12 December 2024
with a vibrational transition and called a vibronic transition. A vibrational and rotational transition may be combined by rovibrational coupling. In rovibronic...
22 KB (2,832 words) - 12:10, 3 January 2025
Hund's cases (redirect from Hund's coupling cases)
In rotational-vibrational and electronic spectroscopy of diatomic molecules, Hund's coupling cases are idealized descriptions of rotational states in which...
13 KB (1,988 words) - 13:01, 5 September 2024
A coupling rod or side rod connects the driving wheels of a locomotive. Steam locomotives in particular usually have them, but some diesel and electric...
6 KB (716 words) - 17:31, 18 September 2024
Rigid rotor (redirect from Rotational constant)
can be used in quantum mechanics to predict the rotational energy of a diatomic molecule. The rotational energy depends on the moment of inertia for the...
35 KB (6,099 words) - 15:26, 26 May 2025
Giubo (category Rotating shaft couplings)
'flexdisc', and sometimes misspelled as guibo, is a flexible coupling used to transmit rotational torque between the drive shaft and the companion flange on...
4 KB (401 words) - 05:21, 5 February 2025
+ E vibrational + E rotational + E nuclear spin . {\displaystyle E_{\text{total}}=E_{\text{electronic}}+E_{\text{vibrational}}+E_{\text{rotational}}+E_{\text{nuclear...
30 KB (5,064 words) - 09:43, 4 May 2025
Vibronic spectroscopy (redirect from Vibrational band)
fundamental vibrations are observed below about 4000 cm−1. When the electronic and vibrational energy changes are so different, vibronic coupling (mixing...
23 KB (3,040 words) - 11:27, 11 December 2024
mechanical description of the vibrational motions of the molecule and the Coriolis coupling between rotations and vibrations. It follows from application...
11 KB (2,025 words) - 11:16, 6 April 2025
May 1963, Schmidt applied for a patent for his “coupling for precise angular transmission of rotational motion” at the Munich, Germany, patent office....
6 KB (763 words) - 14:15, 18 December 2024
correspond to different rotational energy states. When a particle loses angular momentum, it is said to have transitioned to a lower rotational energy state. Likewise...
11 KB (1,654 words) - 12:32, 18 July 2024
spectroscopic technique typically used to determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also...
86 KB (10,080 words) - 13:15, 30 May 2025
therefore if the molecule is to move to a new vibrational level during the electronic transition, this new vibrational level must be instantaneously compatible...
28 KB (3,503 words) - 12:55, 23 May 2025
rotational and vibrational modes are quantized, requiring a minimum temperature to be activated. The "rotational temperature" to activate the rotational degrees...
17 KB (2,360 words) - 15:02, 12 May 2025
Constant-velocity joint (redirect from Thompson coupling)
short-coming of the universal joint is that the rotational speed of the output shaft fluctuates despite the rotational speed of the input shaft being constant...
18 KB (2,294 words) - 03:29, 13 May 2025