. 2019 Oct 30;10:4952. doi: 10.1038/s41467-019-12984-y

Table 2.

Band-fitting parameters as derived from Raman spectra of carbon-based phases measured in diamonds inside fluid inclusions

Sample no.	FI no.	Diamond (cm⁻¹)			sp²-disordered C (cm⁻¹)				sp²–sp³ a-C (cm⁻¹)	Transpoly acetylene groups (cm⁻¹)		sp³ (CH_x)_n Methylene, Methyl groups (cm⁻¹)			Carboxyl, Carboxilate groups (cm⁻¹)
		Cubic	Defect	Met.	D	FWHM	G	FWHM	a-C	CH_n		CH₂	CH₂/CH₃	CH₃	C=O in acid and anhydride
M2B	B3		1214		1349	180	1577	82	1522
M2B	B5		1223		1351	226	1576	87	1525
D2AG	B1	1331	1224		1365	134	1579	87	1524
G2C	I10		1220		1378	174	1594	98	1520						1728	1862
G2C	D1		1222		1364	167	1591	80	1525
G2C	E1		1226		1348	94	1580	77	1531		1464				1720	1856
G2C	C1		1223		1364	168	1591	80	1526
ALC2	B2	1328			1361	60.5	1586	16	1566		1440	2849	2896	2881	1723
ALC2	B5	1330		1284	1365	34	v.w.		1565	1159		2847		2880.6
				1301
ALC2	B6	1329		1283	1360	68	1588	11	1565	1161	1478	2850	2897	2881
				1299								2923		2961
M2B	C7	1332			1368	79	1599	56	1530		1451
G2C	D5	1334			1374	70.2	1590	87		1162	1443
G2C	E4a	1331			1375	57	1600	50		1154	1443
G2C	E4b	1333			1378	38	1583				1443
D2AG	B1c	1332			1346	80	1583	69
ALC2	1				1364	89	1584	80
M2B	C1	1330			1374	112	1583	93
M2B	C3	1333	1220		1363	110	1589	68
3D2AG	A1	1328			1368	90.2	1564	64
D2AGB1	E1	1329			1370	90.6	1565	73

FI fluid inclusion, FWHM full-width at half-maximum height, met. metastable, a-C amorphous C, v.w. very weak