Free Access

Table 1

Rotational constants of diisocyanomethane.

A-reduction S-reduction
Parameters ground state ν15 = 1 Parameters ground state ν15 = 1

A (MHz) 22 189.11047(32)a 22 382.30422(42) A (MHz) 22 189.11561(29) 22 382.30383(36)
B (MHz) 3335.537175(47) 3351.153093(82) B (MHz) 3335.516247(54) 3351.124211(92)
C (MHz) 2948.228531(43) 2954.610620(74) C (MHz) 2948.249585(49) 2954.639581(84)
ΔJ (kHz) 2.580909(22) 2.580312(41) DJ (kHz) 2.528151(27) 2.506397(51)
ΔJK (kHz) –96.44726(36) –92.68163(64) DJK (kHz) –96.12104(22) –92.22938(59)
ΔK (kHz) 1276.9180(58) 1274.6502(85) DK (kHz) 1276.6986(56) 1274.1851(47)
δJ (kHz) 0.7516147(58) 0.755492(12) d1 (kHz) –0.7515421(70) –0.755436(15)
δK (kHz) 10.51477(55) 14.49626(63) d2 (kHz) –0.0264504(16) –0.0370294(27)
ΦJ (Hz) 0.0162306(43) 0.0156807(89) HJ (Hz) 0.0151914(54) 0.014369(11)
ΦJK (Hz) –0.190037(99) –0.11439(20) HJK (Hz) –0.408949(67) –0.40068(31)
ΦKJ (Hz) –11.1068(33) –10.6057(63) HKJ (Hz) –10.26702(97) –9.5348(31)
ΦK (Hz) 222.472(46) 213.524(79) HK (Hz) 222.015(50) 211.551(23)
φJ (Hz) 0.0068090(15) 0.0066053(40) h1 (Hz) 0.0066650(19) 0.0064194(53)
φJK (Hz) 0.07581(22) 0.07401(23) h2 (Hz) 0.00053825(67) 0.0006779(15)
φK (Hz) 16.2012(78) 20.746(22) h3 (Hz) 0.00014693(14) 0.00019468(46)
LJ (mHz) –0.00011461(28) –0.00010055(69) LJ (mHz) –0.00010304(35) –0.00008818(96)
LJK (mHz) –0.3677(42) –0.477(11) LJJK (mHz) 0.0019406(63) 0.002008(43)
LKKJ (mHz) 2.930(17) 2.581(39) LJK (mHz) 0.03713(10) 0.02932(69)
LK (mHz) –48.80(17) –43.22(32) LKKJ (mHz) 1.4346(17) 0.8792(59)
lJ (mHz) –0.00005421(12) –0.00004807(40) LK (mHz) –47.63(19) –36.710(38)
lJK (mHz) –0.000965(23) 0.0 l1 (μHz) –0.05136(16) –0.04477(57)
lKJ (mHz) 0.01943(94) 0.0314(25) l2 (μHz) –0.006590(64) –0.00770(21)
lK (mHz) –17.73(16) –22.39(48) l3 (μHz) –0.003548(28) –0.00440(10)
PJK (μHz) 0.003977(75) 0.0 l4 (μHz) –0.0004479(75) –0.000772(18)
PKJ (μHz) –0.0541(10) 0.0 PK (μHz) 9.02(25) 0.0
PKKJ (μHz) –0.352(20) 0.0 p5 (nHz) –0.00001699(87) 0.0
PK (μHz) 10.12(23) 0.0

Nb 1342 873 1324 868
σ (MHz)c 0.022 0.024 0.025 0.027
σwd 0.57 0.59 0.63 0.64
ηe 1901 657 663 200

Notes. 

(a)

Numbers in parentheses are one time the standard deviations.

(b)

Number of distinct frequency lines in fit.

(c)

Standard deviation of the fit.

(d)

Weighted deviation of fit.

(e)

Condition number of the fit (Margulès et al. 2010).

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.