s-net: sqc8643



			    	
		

		

			
				
				
				
				
			
			
				
					Systre crystallographic geometry file (.cgd) 
			
		

	




	

	
Links to this net in other databases

	

		

			topcryst
		

	

		



 

Topological data




	
Vertices per primitive translational unit 16 

	
Edges per primitive translational unit 36 

	
Transitivity (vertex,edge)(4,5)

	
Vertex degrees {4,6,4,4} 

	
Vertex coordination sequence  [(4, 12, 27, 77, 95, 217, 250, 491, 490, 877), (6, 12, 44, 58, 144, 160, 360, 358, 706, 614), (4, 12, 30, 56, 136, 162, 348, 348, 666, 620), (4, 20, 30, 84, 104, 246, 256, 544, 466, 928)] 

	
Wells’ vertex symbol [3^2.4.6^2.7, 3^2.6^6.7^2.8.10^3.11, 6^6, 6^6] 

	
Systre key (3, 1, 2, 0, 0, 0, 1, 2, 1, 0, 0, 1, 3, 0, 0, 0, 1, 4, 0, 0, 0, 1, 5, 0, 0, 0, 1, 5, 1, 0, 0, 2, 5, 0, 0, 0, 2, 6, 0, 0, 0, 3, 7, 0, 0, 0, 3, 8, 0, 0, 0, 3, 9, 0, 0, 0, 4, 7, 1, 0, 1, 4, 8, 0, 0, 1, 4, 9, 0, 1, 0, 5, 10, 0, 0, 0, 6, 11, 0, 0, 0, 6, 12, 0, 0, 0, 6, 13, 0, 0, 0, 7, 13, 0, -1, 0, 7, 13, 0, 0, -1, 7, 14, 0, -1, 1, 7, 14, 0, 0, 0, 8, 11, 1, -1, 0, 8, 11, 1, 0, 0, 8, 15, 0, -1, 0, 8, 15, 0, 0, 0, 9, 12, 0, -1, 0, 9, 12, 1, -1, 1, 9, 16, 0, 0, 0, 9, 16, 1, 0, 1, 10, 14, 0, -1, 1, 10, 15, 0, -1, 1, 10, 16, 0, 0, 1, 11, 15, -1, 0, 0, 12, 16, 0, 1, 0, 13, 14, 0, 0, 1) 




 

Geometric data



Systre equilibrium placement (barycentric embedding) maximising unit cell volume




	
 Spacegroup: I41/a 


	
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 3.06458 
			 3.06458  
			 3.33495 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

	


	
 Vertex positions:
		

			

				 X-pos 
				 Y-pos 
				 Z-pos 
			


				
 
						 0  
						 0.05  
						 0.025  
				
	  
				
 
						 0  
						 0.5  
						 0.5  
				
	  
				
 
						 0  
						 0.25  
						 0.125  
				
	  
				
 
						 0  
						 0.25  
						 0.625  
				
	  
		

	

	
Edge end points: 
		

		
		
	






Systre coordinates favouring equal edge-lengths




	
 Spacegroup: I41/a 



		
 Parameters:  
		

			
 a   b   c   alpha   beta   gamma 
	  
			
 
			 2.77622 
			 2.77622  
			 1.11278 
			 90.0  
			 90.0  
			 90.0 
			
	  
		

		


		
Vertex positions:
			

				

					 X-pos 
					 Y-pos 
					 Z-pos 
				


					
 
							 0.35706  
							  0.12256  
							  0.12516  
					
	  
					
 
							 0  
							  0.5  
							  0.5  
					
	  
					
 
							 0  
							  0.25  
							  0.125  
					
	  
					
 
							 0  
							  0.25  
							  0.625  
					
	  
			

		


		
Edge end points: 
			

			
			
		



	

	 


 

Hyperbolic sources





h-nets with faithful topology




		1 record listed.

	

		

			Image
			h-net name
			Orbifold symbol
			Transitivity (Vert,Edge,Face)
			Vertex Degree
			2D Vertex Symbol
		


		
			

					Net details
					hqc1162
				
				*2244
				 (4,4,2)
				{4,6,4,4}
				{3.6.6.3}{3.6.6.3.6.6}{6.6.6.6}{... 
			

	


	





h-nets with edge collapse


	
 No items to display.