Structural Study of Europium Doped Gadolinium Polyphosphates LiGd(PO₃)₄ and Its Effect on Their Spectroscopic, Thermal, Magnetic, and Optical Properties

Table 2

Atomic distances(Å) and angles in LiGd(PO₃)₄ with standard deviations in parentheses.

Tetrahedra	aroundP1
P1-OL12	1.534(4)	OL12 -OL21	2.381(12)	OL12—P1—OE11	111.61(38)
P1-OL21	1.535(4)	OL12 -OE21	2.446(11)	OL12—P1—OL21	101.76(23)
P1-OE11	1.534(11)	OL12 -OL21	2.463(14)	OL12—P1—OE12	105.86(29)
P1-OE12	1.535(12)	OL12 -OE11	2.538(11)	OL21—P1—OE11	117.46(53)
		OL12 -OE22	2.482(12)	OL21—P1—OE12	105.55(40)
		OL12 -OE12	2.448(15)	OE12—P1—OE11	113.37(47)
Tetrahedra	around P2
P2 -OL12	1.5343(13)	OE22 -OL12	2.482(12)	OE22—P2—OE21	113.09(39)
P2 -OL21	1.534(6)	OE22 -OL21	2.619(12)	OE22—P2—OL12	108.04(41)
P2 -OE21	1.535(10)	OE22 -OE21	2.560	OE22—P2—OL21	117.27(36)
P2 -OE22	1.533(7)	OL21 -OL12	2.381(12)	OE21—P2—OL12	105.66(4)
		OL21 -OL12	2.440(11)	OE21—P2—OL21	105.25(16)
		OE21 -OE22	2.560(13)	OL12—P2—OL21	106.79(38)
Polyhedra	around Gd	Tetrahedra; around Li
Gd -OE21	2.489(6)	Li -OE21		Gd -Gd	5.592(2)
Gd -OE21	2.489(6)	Li -OE21		Li -Gd	3.533(2)
Gd -OE11	2.283(13)	Li -OE12		Li -Li	5.068(0)
Gd -OE11	2.283(13)	Li -OE12		P1 - P2	2.8710(4)
Gd-OE22	2.197(13)			P2 -P1	2.7897(4)
Gd-OE22	2.197(13)			Gd -P1	6.256(2)
Gd-OE12	2.605(7)
Gd -OE12	2.605(7)
Symmetry; code	i: x,1+y,z	ii:x,1+y,z; iii:1.5-x,1+y,-z		iv:2-x,1-y,-z; v:2-x,2-y,-z	vi:1-x,0.5+y,0.5-z