Гептасульфид пентаэрбия

Гептасульфид пентаэрбия
Общие
Систематическое
наименование		 Гептасульфид пентаэрбия
Традиционные названия Сернистый эрбий
Хим. формула Er5S7
Физические свойства
Состояние кристаллы
Молярная масса 1060,75 г/моль
Плотность 6,6 г/см³
Термические свойства
Температура
 • плавления ~1600 °C
Приведены данные для стандартных условий (25 °C, 100 кПа), если не указано иное.

Гептасульфид пентаэрбия — бинарное неорганическое соединение эрбия и серы с формулой Er5S7, кристаллы.

Получение

  • Нагревание стехиометрических количеств чистых веществ в инертной атмосфере:

Физические свойства

Гептасульфид пентаэрбия образует кристаллы моноклинной сингонии, пространственная группа C 2/m, параметры ячейки a = 1,2671 нм, b = 0,3775 нм, c = 1,1480 нм, β = 104,75°, Z = 2, структура типа гептасульфида пентаиттрия Y5S7[1][2].

Соединение конгруэнтно плавится при температуре ~1600 °С[3].


Примечания

  1. ↑ Диаграммы состояния двойных металлических систем / Под ред. Н. П. Лякишева. — М.: Металлургия, 1997. — Т. 2. — 1024 с. — ISBN 5-217-01569-1.
  2. ↑ B. Predel. Er-S (Erbium-Sulfur) // Landolt-Börnstein - Group IV Physical Chemistry. — 1995. — Т. 5e. — С. 1-2. — doi:10.1007/10474837_1222.
  3. ↑ Демчук Ж. А. Фазовые равновесия в системах Dy2S3 – EuS, EuS – Dy2S3 – Cu2S, энтальпии фазовых превращений. Структура соединения EuHoCuS3 // Диссертация на соискание ученой степени кандидата химических наук. — 2015. Архивировано 7 августа 2016 года.


Неорганические сульфиды
H2S
Li2S BeS B2S3
BS2
B2S5 		CS2 NH4HS
(NH4)2S
H8N2MoS4 		O F
Na2S
NaHS
NaCrS2 		MgS Al2S3 SiS
SiS2 		P4S3
P4S7
P4S10 		S Cl
K2S
KBiS2
KFeS2
KHS
K2Pt4S6
KCrS2 		CaS
Сa(HS)2 		ScS
Sc2S3 		Ti6S
Ti16S21
Ti2S
TiS
Ti8S9
Ti8S10
Ti2S3
TiS2
TiS3 		V3S
V5S4
VS
V2S3
V5S8
VS2
V2S5
VS4 		CrS
Cr5S6
Cr7S8
Cr3S4
Cr2S3
CoCr2S4
KCrS2
NaCrS2 		MnS
MnS2 		FeS
FeS2
CuFeS2
Fe3S4
Fe2S3
KFeS2 		CoS
CoS2
Co9S8
Co3S4
CoCr2S4
Co2S3
CoAsS 		Ni2S
Ni3S2
Ni6S5
Ni7S6
NiS2
NiS
Ni3S4 		Cu2S
CuS
CuFeS2
CuS2 		ZnS Ga2S
GaS
Ga2S3 		GeS
GeS2 		As4S4
As4S5
As4S3
As2S3
As2S5 		Se6S2
SeS
SeS2
Se2S6 		Br
Rb2S SrS
SrS2 		YS
Y5S7
Y2S3
YS2 		Zr9S2
ZrS2
Zr3S2
ZrS
Zr2S
ZrOS
ZrS3 		NbS
NbS2
NbS2Br2
NbS2Cl2
NbS3 		Mo2S3
MoS2
MoS3 		Tc2S7 RuS2 Rh17S15
Rh2S3
RhS2 		Pd4S
Pd3S
Pd16S7
Pd2S
PdS
PdS2 		Ag2S
AgS
Ag3SbS3 		CdS In2S
InS
In6S7
In3S4
In2S3
In3S5 		SnS
Sn3S4
Sn2S3
SnS2 		Sb2S3
Sb2S5 		Te I
Cs2S
Cs2S2
Cs2S3
Cs2S5
Cs2S6 		BaS
Ba(HS)2 		  Hf2S
HfS
Hf2S3
HfS2
HfS3 		Ta6S
Ta2S
TaS2
TaS3 		WS2
WS3 		ReS
ReS2
Re2S7 		OsS2
OsS4 		IrS
Ir2S3
IrS2
IrS3 		PtS
K2Pt4S6
Pt2S3
PtS2 		Au2S
AuS
Au2S3 		Hg2S
HgS
Hg3S2Cl2 		Tl2S
TlS
Tl2S3
Tl2S5 		PbS
PbS2 		BiS
KBiS2
Bi2S3
BiSI
BiSCl 		PoS At
Fr Ra   Rf Db Sg Bh Hs Mt Ds Rg Cn Nh Fl Mc Lv Ts
↓
LaS
La3S4
La2O2S
La2S3
LaS2 		CeS
Ce3S4
Ce5S7
Ce2S3
CeS2 		PrS
Pr5S7
Pr3S4
Pr2O2S
Pr2S3
PrS2 		NdS
Nd3S4
Nd2O2S
Nd2S3 		Pm SmS
Sm3S4
Sm2S3 		EuS
Eu3S4
Eu2O2S
Eu2S3 		GdS
Gd2S3
GdS2 		Tb DyS
Dy5S7
Dy2S3
DyS2 		HoS
Ho5S7
Ho2O2S
Ho2S3 		Er5S7
ErS
Er2S3 		Tm YbS
Yb3S4
Yb2S3 		LuS
Lu2O2S
Lu2S3
Ac2S3 US
U2S3
US2
U2S5
US3 		PaOS ThS
Th2S3
Th7S12
ThS2
Th2S5 		NpS
Np2S3
NpOS
Np3S5
NpS3 		PuS
Pu2O2S
Pu2S3
PuS2 		Am2S3 Cm Bk Cf Es Fm Md No Lr

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